Name

Vachellia collinsii (Safford) Seigler & Ebinger, Phytologia 87:150. 2005.
syn. Acacia collinsii Safford, Science N.S. 31:677. 1950

Synonymy and types

Basionym: Acacia collinsii Saff., Science N.S. 31: 677. 1910. Myrmecodendron collinsii (Saff.) Britton & Rose, N. Amer. Fl. 23: 92. 1928. - TYPE: MEXICO. CHIAPAS: between Chicoasén and San Fernandino, 1,005 ft., 13 Jan 1907, G. N. Collins & C. B. Doyle 180 (holotype: US, F photo). NOTE: Safford (1910) listed G. N. Collins as the only collector, and cited 14 Jan. 1907 as the date collected. On the label of the type specimen G. N. Collins and C. B. Doyle are listed as the collectors and 13 Jan. 1907 is given as the date of the collection.

Acacia glutea Ram. Goyena, Fl. Nicaragüense 1: 382. 1909. - TYPE: not cited. NOTE: Although the original description of Ramírez Goyena is in Spanish and no type is cited (Rico Arce, 2001), this species was described before either of these was required. Because this name is not accepted by most workers, is not supported by type material, nor is a designated herbarium extant, in order to contribute to nomenclatural stability, we have made a proposal to conserve the name of Safford (1910), which is widely used. If accepted, the name for this taxon must become Vachellia collinsii (Saff.) Seigler & Ebinger.

Acacia costaricensis Schenck, Repert. Spec. Nov. Regni Veg. 12: 361. 1913. Myrmecodendron costaricensis (Schenck) Britton & Rose, N. Amer. Fl. 23: 93. 1928. - TYPE: COSTA RICA. ALAJUELA: Alajuela, alt. 900 m, 1896, J. D. Smith 6488 [lectotype, designated by Seigler and Ebinger (1995): S (B, destroyed); isotypes: BM, GH, K, MO].

Acacia panamensis Schenck, Repert. Spec. Nov. Regni Veg. 12: 362. 1913. - TYPE: PANAMA. ALAJUELA: A. Koch s.n. (holotype: B, destroyed).

Acacia yucatanensis Schenck, Repert. Spec. Nov. Regni Veg. 12: 361. 1913. - TYPE: MEXICO. YUCATÁN, 1895, G. F. Gaumer 353 [lectotype, designated by Seigler and Ebinger (1995): US (B, destroyed); isotypes: BM, GH, F, MO].

Acacia nelsonii Saff., J. Wash. Acad. Sci. 4: 363. 1914. - TYPE: MEXICO. GUERRERO: Acapulco, sea level, 30 Apr 1903, E. W. Nelson 7024 (holotype: US; isotypes: GH, F).

Acacia penonomensis Saff., J. Wash. Acad. Sci. 4: 363. 1914. - TYPE: PANAMA. COCLÉ: Penonomé, 50-1,000 ft., 23 Feb-22 Mar 1908, R. S. Williams 113 (holotype: NY, F photo, US fragment and photo; isotype: US).

Formal description

Tree to 10 m tall. Bark dark gray to brown, shallowly furrowed. Twigs reddish brown to dark brown, not flexuous, glabrous. Short shoots absent. Leaves alternate, 40-195 mm long. Stipular spines light reddish brown to dark brown, rarely ivory to yellowish, mostly symmetrical, terete, straight, stout and inflated, 20-50 x 13 mm near the base, glabrous. Petiole adaxially grooved, 4-18 mm long, glabrous to lightly puberulent; petiolar glands (2)3 to 5, usually near the base of the petiole, sessile, dome-shaped to broadly volcano-shaped, base 1.0-2.5 mm across, apex nearly circular, 0.3-0.8 mm across, puberulent. Rachis adaxially grooved, 30-180 mm long, glabrous to lightly puberulent, rachis glands mostly absent. Pinnae 3 to 15 pairs per leaf, 30-90 mm long, 7-17 mm between pinna pairs. Petiolules 0.7-1.5 mm long. Leaflets 11 to 29 pairs per pinna, opposite, 1.0-2.5 mm between leaflets, oblong, 6-13 x 1.3-3.1 mm, glabrous, lateral veins obvious, 2 to 3 veins from the base, base oblique, margins usually not ciliate, apex obtuse; beltian bodies 0.4-0.8 mm long. Inflorescence a densely flowered cylindrical spike nearly the same thickness throughout, 15-35 x 4-6 mm, commonly in short, leafy racemose clusters to 80 mm long with 1-3(5) spikes per node. Peduncles 6-20 x 0.8-1.8 mm, glabrous to lightly puberulent. Involucre 4-lobed, located near the base to lower third of the peduncle, glabrous to lightly puberulent, persistent. Floral bracts peltate, 0.6-1.1 mm long, apex circular and usually puberulent, deciduous. Flowers sessile, yellowish; calyx 5-lobed, 1.0-1.4 mm long, glabrous; corolla 5-lobed, 1.1-1.5 mm long, slightly longer than the calyx, glabrous; stamen filaments 1.5-2.5 mm long, distinct; ovary glabrous, subsessile. Legumes dark brown to black, nearly straight, elliptical in cross section, not constricted between the seeds, oblong, 30-60 x 7-13 mm, coriaceous, not striate, glabrous, eglandular, dehiscent along both sutures; stipe absent; apex acute, short beaked to 1-6 mm long. Seeds uniseriate, imbedded in a yellow aril, dark brown, ovoid, slightly flattened, 5.3-7.9 x 3.5-5.5 mm, smooth; pleurogram oval, 3-4.5 mm across. Flowers in January to August. Chromosome number: Not determined.

Distribution

Shrubby vegetation of pastures, successional fields, edge of roads, scrub forest, and rocky ridges in habitats ranging from wet to moderately dry in the lowlands from along the west coast of Mexico from Guerrero east to the Yucatán Peninsula, south through Central America to Colombia (Seigler and Ebinger 1995).

Additional info

Vachellia collinsii has the most extensive geographical distribution of all New World ant-acacias, and is the only ant-acacia known to occur in South America. This species also has the widest ecological distribution, growing in dry to moderately wet pastures and fields and in open shrubby vegetation from sea level to 1,000 m. It is a common component of early successional areas, being particularly abundant in habitats too dry for the other ant-acacias (Janzen 1974). This wide ecological and geographical distribution has resulted in a relatively broad morphological diversity, which is reflected in the extensive synonomy. Though morphologically diverse, Acacia collinsii can easily be distinguished from all other ant-acacias by the following combination of characters: elongated cylindrical inflorescences, 3-5 petiolar glands that are broadly dome-shaped, absence of rachis glands, and leaflets with obvious lateral veins. Also, most individuals have relatively small stipular spines that are terete in cross section; occasional individuals are encountered with stipular spines that have the base enlarged and flattened, a characteristic of A. hindsii.

As is typical of most xerophytic ant-acacias, Beltian body production in Vachellia collinsii is relatively high. In this species, the nearly globose Beltian bodies usually are found on more than 50% of the leaflets of developing leaves. As most individuals of this species are inhabited by obligate acacia-ants, the Beltian bodies are generally "harvested" soon after development.

Cyanide tests of more than 400 specimens of Vachellia collinsii indicate that this species is not cyanogenic. Herbarium material of this species was reported cyanogenic (Seigler et al. 1978), but reinvestigation of these same specimens failed to confirm activity (Seigler and Ebinger 1987). Janzen (1981) did not report cyanogenesis for this species.

Vachellia collinsii probably hybridizes with V. hindsii. These species are sympatric in parts of their ranges in Mexico and Central America, and occasionally occur at the same site. Vachellia collinsii also hybridizes with the non-ant-acacia V. pennatula (Ebinger & Seigler 1992).

Flowering time

January-August.

Representative specimens

BELIZE:

Cerros Maya Ruins, Lowry's Bight, 16 Apr 1981, C.J.Crane 214 (LL);
Belize City, beach along Caesar Road, 24 Jun 1973, J.D.Dwyer 11401 (US);
mile 5 3/4 Northern hwy., 6-7 Jun 1974, J.D.Dwyer 12781 (MO, TEX);
Maskall, P.H.Gentle 1112 (GH, WIS);
Honey Camp, coastal region, 4 Nov 1929, C.L.Lundell 671 (DS);
about 1 mile S of Belmopan, alt. 80 m, 29 Jul 1970, D.L.Spellman & W.W.Newey 1937 (MO).

COLOMBIA:

Atlántico:

Lomas cerca de Arroyo Jubilado, 24 Dec 1933, A.Dugand G. 117b (US);
near Barranquilla, 2 Oct 1932, A.Dugand G. 117 (F);
near Galapa, 16 Mar 1933, A.Dugand G. 404 (F);
Camino de Malambo a Sabanagrande, Jan 1936, A.Dugand G. 404c (US);
Arroyo de Megua, alt. 50 m, 13 Jan 1941, A.Dugand & R.Jaramillo 2796 (US);
Barranquilla and vicinity, alt. 250 m, Jul 1927, Bro.Elias 245 (US);
Barranquilla and vicinity, alt. 250 m, Jul 1927, Bro.Elias 479 (US);
Barranquilla and vicinity, Megua, Aug 1933, Bro. Elias 1070 (F, NY, US);
streams of Usiacuri and Pital, in mts. SW of Barranquilla, 26 May 1928, E.Niemeyer 209 (US);

Bolívar:

Municipio de Arenal, alt. 45-60 m, 22 Apr 1966, E.Forero G. & R.Jaramillo M. 496 (F);
Galerazamba, N tip of Bolívar Dept., near sea level, thorn scrub forest, 30 Jun 1984, A.Gentry & H.Cuadros 47432 (ILL, MO);
forest on trail from Santa Isabel Town to summit, alt. 230 m, 5 Jun 1993, A.Gentry, R.Ortiz & H.Cuadros 79649 (MO);
vicinity of Cartagena, 1919, Bro. Heriberto 39 (US);
thickets on dry slope, Isla de Providencia, 29 Apr-9 May 1948, G.R.Proctor 3430 (US);
Mun. de Cartagena, along road ca. 7 km SW of Arroyo Grande, 31 Jul 1985, J.L.Zarucchi & H.Cuadros 3902 (ILL, MO).

COSTA RICA:

Alajuela:

El Coyolar, alt. 240 m, 1-3 Apr 1924, P.C.Standley 40026 (US);
Alajuela, alt. 900 m, 1896, J.D.Smith 6488 (GH, US);

Comelco:

W of Bagaces, 6 Aug 1971, E.R.Heithanus 302 (MO);:

Guanacaste:

vicinity of Cañas, Finca La Pacifica, 16 Dec 1969, R.Daubenmire 449 (F);
NW of Paloverde, Barbudal Hills, 26 Jan 1983, N.Garwood, M.Gibby, R.J.Hampshire & C.J.Humphries 570 (MO);
10.7 miles NW of Liberia, 9 May 1965, D.H.Janzen 1826 (F, UC, US);
Playa Coco, sea level, 2 May 1965, D.H.Janzen 1961 (ILL);:
23 km SE of Liberia, alt. 100-200 m, 23 Jul 1964, R.W.Lent 85 (US);
La Pacifica, near Cañas, 28 Jul 1985, D.S.Seigler 12269 (ILL);
at Finca La Pacific, near Duck Pond, 15 Aug 1985, D.S.Seigler 12397 (ILL);

Puntarenas:

about 10 miles NE of Palmar Sur on the Inter-American hwy., 23 May 1965, D.H.Janzen 1852 (US);

San José:

Villa Colón, 15 Feb 1965, D.H.Janzen 1862 (F, MO, US);
Santa Rosa National Park, nature trail, alt. 200-300 m, 22 Jun 1977, R.L.Liesner 2312 (F, MO).

EL SALVADOR:

La Unión:

7.1 miles W of El Amatillo, 12 May 1965, D.H.Janzen 1801 (F, US).

GUATEMALA:

El Petén:

Tikal, 1 Mar 1961, C.L.Lundell 16813 (LL);
in San Miguel on shore of Lago Petén-Itzá, N of Flores, 1 Aug 1978, A.W.Ratcliff 56 (CAS);

Izabal:

Finca El Zapotillo, N shore of Lake Izabal, Lago Izabal, sea level, 17 May 1966,:
G.C.Jones & L.Facey 3424 (US);
Jones Bridge, 5.8 miles NE of Río Hondo on hwy. 9, D.H.Janzen 1797 (F, MEXU).

HONDURAS:

Choluteca:

2.4 miles NE of Choluteca, 31 May 1965, D.H.Janzen 1788 (MO);
3.6 miles NW of Choluteca, 11 May 1965, D.H.Janzen 1803 (MO);

Colón:

Trujillo, a orillas del Río Negro, 11 Mar 1983, M.A.Echeverría 121 (ILL);
4.5 miles NE of Trujillo on old road to Castilla, 20 Feb 1981, J.Saunders 1040 (F, MO);

Comayagua:

on slope down to Río Selguapa, Comayagua valley, alt. 600 m, 20 May 1972, D.Burch 6033 (MEX, MO);
El Banco, alt. 640 m, 15 Mar 1945, J.V.Rodrígues 2437 (F);

Olancho:

vicinity of Juticalpa, alt. 380-480 m, 5-16 Mar 1949, P.C.Standley 17522 (F);

Valle:

28.4 miles SE of El Amatilla on Inter-American hwy., 15 Jan 1965, D.H.Janzen 1841 (F, MEX, US).

MEXICO:

Campeche:

0.8 miles E of Campeche on hwy. 180, 25 Jun 1966, D.H.Janzen 428 (MEX, F);
0.8 miles E of Campeche on hwy. 180, 25 Jun 1966, D.H.Janzen 431 (F);
0.8 miles E of Campeche on hwy. 180, 25 Jun 1966, D.H.Janzen 433 (F);
Playa Bonita, 0.7 miles S of Lerma on hwy. 180, 23 Jun 1966, D.H.Janzen 438 (F);
13 miles SW of Champotón Bridge on hwy. 180, 5 Jun 1980, D.S.Seigler, P.M.Richardson & S.Thompson 11606 (ILL);
13 miles SW of Champotón Bridge on hwy. 180, 5 Jun 1980, D.S.Seigler, P.M.Richardson & S.Thompson 11607 (ILL);

Chiapas:

along hwy. 190, 13 miles S of La Trinitaria, alt. 3,000 ft., 26 Jan 1965, D.E.Breedlove & P.H.Raven 8448 (F, US);
cerca de Berrio Zabel, camino a San Fernándo, alt. 950 m, 18 Dec 1949, F.Miranda 5847 (US);
14 miles W of Ocozocoautla on hwy. 190, 3 Aug 1975, D.S.Seigler & G.Holstein 9796 (ILL);
Telestaquine on hwy. 195, 1 Jun 1980, D.S.Seigler, P.M.Richardson & S.Thompson 11587 (ILL);
Mirador, Chicoasen, alt. 600 m, 17 Dec 1980, M.Sousa, P.Basurto & T.P.Ramamorthy 11631 (ILL);
Emiliano Zapata, 8 km Norte de Cintalapa, 3 Mar 1988, E.Ventura & E.López 5093 (ASU);
approx. 1/4 km W of Tres Amores on N side of road to Col. J. Mujica, Jan-May 1977, B.Voorhies & A.Sánchez 56-3 (DS);

Guerrero:

Petatlan, Montes de Oca, 17 Jun 1937, G.B.Hinton 10333 (MO, NY, US);
Acapulco, Apr 1903, E.W.Nelson 7024 (GH);

Oaxaca:

2 km al E de Salinas de Márques, 2 Mar 1981, F.González M. & J.L.Villaseñor R. 11810 (TEX);
11.4 miles W of Tehuantepec, 3 Sep 1965, D.H.Janzen 1779 (F);
11.4 miles W of Tehuantepec, 3 Sep 1965, D.H.Janzen 1780 (F, NY);
11.4 miles W of Tehuantepec, 3 Sep 1965, D.H.Janzen 1783 (F);
13.8 miles w of Tehuantepec, Jun 1965, D.H.Janzen 1845 (F, UC);
13.8 miles W of Tehuantepec, Jun 1965, D.H.Janzen 1850 (F);
beach at La Ventosa, 7 km E of Salina Cruz, 3 Jul 1959, R.M.King 1302 (TEX);
10-12 km E of the village of Niltepec on the Pan-American hwy., 18 Jun 1977, R.M.King 1856 (NY, TEX, UC, US);
Salina Cruz, 9 Mar 1910, C.R.Orcutt 3451 (DS);
30 km E of Puerto Escondido, 18 Jul 1993, D.S.Seigler, D.Clarke & K.Potgieter 13930 (EIU, ILL);
50 miles E of Tehuantepec on hwy. 190, 3 Aug 1975, D.S.Seigler & G.Holstein 9783 (ILL);
a 3 km al W de Niltepec, Distr. de Juchitan, alt. 40 m, 18 Jun 1977, M.Sousa, A.Delgado & A.S.Magallanes 7415 (LL, NY);
crucero Sta. Elena, desv. a Cozoaltepec, a 26 km al E-SE de Pto. Escondido, Distr. de Pochutla, alt. 20 m, 22 Oct 1976, M.Sousa, O.Téllez, A.S.Magallánes & A.Delgado 6422 (MO);

Quintana Roo:

7 km al W del entronque de la carr. Chetumal, 6 Jun 1985, R.Grether 1951 (MO);
5.4 miles E of Polyruc on road from Peto to Ciudad Chetumal, 30 Jun 1966, D.H.Janzen 453 (F);
32 miles N of jct. 307 & 186, N of Chetumal on hwy. 307, 4 Jun 1980, D.S.Seigler, P.M.Richardson & S.Thompson 11595 (MEX, ILL);
32 miles N of jct. 307 & 186, N of Chetumal on hwy. 307, 4 Jun 1980, D.S.Seigler, P.M.Richardson & S.Thompson 11596 (ILL);

Yucatán:

Chichén Itzá, 30 May 1929, J.Bequaert 2 (F, US);
Calotmul, G.F.Gaumer 1685 (F, MO, UC);
Calotmul, G.F.Gaumer 2333 (F, MO, NY, US);
Tucal, G.F.Gaumer 23284 (F, ILL, MO, NY, US);
La Vega, 14-26 Mar 1901, E.A.Goldman 636 (US);
S margin of Santa Elena on hwy. 180, 28 Jun 1966, D.H.Janzen 455 (F);
Chichén Itzá, 4 Jun 1980, D.S.Seigler, P.M.Richardson & S.Thompson 11599 (EIU, ILL).

NICARAGUA:

Boaco:

4.5 km N of road to Camoapa, hwy. 7, alt. 260 m, 7 Jun 1984, W.D.Stevens 22921 (MO);

Carazo:

SE of Bocana Grande, 10 Jul 1977, W.D.Stevens 2761 (TEX);

Estelí:

1 mile N Condega, 11 May 1965, D.H.Janzen 1810 (F);
municipio San Juan de Limay, alt. 550-600, 5 Sep 1980, P.Moreno 2426 (MO);
3-7 km NW of Pueblo Nuevo, alt. 600-700 m, 24 Nov 1973, Williams & Molina R. 42414 (F);

Granada:

camino a Charco Muerto, 3 km al E de Casa de Tejus, alt. 100-200 m, 5 Jun 1980, M.Araquistain & P.Moreno 2864 (MO);
Granada, 28 Feb 1903, C.F.Baker 112 (CAS);
Isla Zapatera, alt. 100 m, 22 Nov 1982, A.Grijalva 1897 (MO);
low hills near Granada, 2 Jul 1923, W.R.Maxon, A.D.Harvey & A.T.Valentine 7597 (US);

León:

along hwy. 12, ca. 1 km SE of junction with hwy. 28, alt. 30 m, 17 Dec 1978, W.D.Stevens 11170 (MO);

Madriz:

2.5 miles SW of Somoto, 11 May 1965, D.H.Janzen 737 (EIU);
2.5 miles SW of Somoto, 11 May 1965, D.H.Janzen 738 (EIU);
2.5 miles SW of Somoto, 11 May 1965, D.H.Janzen 1808 (US);

Managua:

Balneario de Pochomil a unos 40 km al SE de la Ciudad Managua, alt. 10 m, 13 Oct 1979, A.Grijalva 587 (MO);
hacienda San Jacinto, alt. 100 m, 16 Jul 1980, P.Moreno 1188 (MO);
Carretera a Masachapa, villa El Carmen, alt. 110 m, P.Moreno 4658 (MO);
Camino a San Francisco, alt. 50-60 m, 28 May 1981, P.Moreno & J.Henrich 8789 (MO);
galley forest along Río Santa Clara, near km 34.5 carretera a León, alt. 150 m, 2 Nov 1977, D.Neill 2867 (US);
along hwy. 8, ca. 3.7 km NE of Masachapa, alt. 35 m, 4 Feb. 1978, J.J.Pipoly 1722 (CAS, MICH);

Matagalpa:

1 km al E del caserio Puertas Viejas, alt. 400-450 m, 15 Jun 1980, P.Moreno 690 (MO);

Rivas:

Río Escameca, alt. 100 m, 13 Mar 1984, M.Araquistain 3811 (CM);
La Virgin, 16 Jan 1965, D.H.Janzen 1814 (F);
San Juan del Sur, 16 Jan 1965, D.H.Janzen 1815 (F, UC, US);
San Juan del Sur, 16 Jan 1965, D.H.Janzen 1819 (F);
San Juan del Sur, 16 Jan 1965, D.H.Janzen 1821 (F);
1 mile N of Peña Blanco, 16 Jan 1965, D.H.Janzen 1822 (F);
Peña Blanca, 16 Jan 1965, D.H.Janzen 1830 (F, MEX);
20.5 miles NW of Peña Blanca, 16 Jan 1965, D.H.Janzen 1832 (F);
Playa de Popoyo, alt. 10-15 m, 19 Feb 1983, J.C.Sandino 4208 (MO);
3-4 km NW of Río La Flora, Playa El Coco, alt. 0-95 m, 11 Sep 1977, W.D.Stevens 3731 (MO);
at convergence of Río La Pita and Rio Escalante, alt. 20 m, 3 Aug 1978, W.D.Stevens 9728 (MO);

Zelaya:

in vicinity of La Luz-Siuna, alt. 150-200 m, 14 Mar 1961, G.S.Bunting & L.Licht 666 (F, NY, US);
Awas Tingni, alt. 20 m, 18 Mar 1971, E.L.Little, Jr. 25230 (F, US);
near Wany, 18 May 1978, D.Neill 4096 (MO);
vic. of Wani, alt. 90-110 m, 22 Apr 1978, W.D.Stevens 7936 (MO).

PANAMA:

Canal Zone:

Victoria fill, near Miraflores Locks, 6-14 Mar 1939, P.H.Allen 1743 (MO, US);
Albrook Forest, 20 Jan 1966, K.E.Blum & J.D.Dwyer 2096 (MO);
road C21, 3 miles from Gaillard hwy., 1 Jan 1971, T.B.Croat 12998 (F, MO);
Albrook Site, no date, J.D.Dwyer 6597 (F, MO);
Boy Scout Road, Madden Dam area, 6 Jan 1974, J.D.Dwyer 11973 (MO, US);
Military road K-9, 21 Jul 1960, J.E.Ebinger 534 (MO);
Arraijan Tank Farm, U,S. Navy, 24 May 1978, B.Hammell 3248 (MO);
Madden Lake Dam, 3 Jul 1967, D.H.Janzen 1653 (F, MO, NY);
2 miles W of Balboa on hwy. 1, 26 Jun 1970, Luteyn & Foster 950 (F);
Chivi-Chivi Trail, 2 miles above Red Tank, 28 May 1923, W.R.Maxon & A.D.Harvey 6579 (US);
vicinity of Rio Cocoli, road K-9, 30 May 1959, W.L.Stern, K.L.Chambers, J.D.Dwyer & J.E.Ebinger 18 (MO, US);
Fort Clayton in old hospital area, 5 May 1966, E.L.Tyson & K.Blum 3894 (MO);

Chiriqui:

400 m de la carretera a Boquerón, 26 Dec 1971, N.Barrera 38 (MO);
Sulphur Springs near Davíd, 4 Mar 1918, E.P.Killip 3641 (US);
6 miles S of Puerto Armuelles, alt. 0-150 m, 5 Mar 1973, R.L.Liesner 431A (MO);
Río Cochea, irrigation ditch at Cochea, 4 Mar 1983, R.J.Schmalzel 1419 (EIU, ILL);

Cocle:

roadside pasture 20 miles S of Nata, 13 Apr 1970, T.B.Croat 9643 (MO);
13.1 miles NW of Anton on Inter-American hwy., 1 Jul 1967, D.H.Janzen 1698 (F, MO, NY);

Herrera:

3 km W of Las Minas on the road to El Toro, alt. 200-600 m, 23 Jan 1981, K.Sytsma & W.G.D'Arcy 3157 (ILL, MO);

Los Santos:

between Limon and Punta Mala, 14 Apr 1970, W.G.D'Arcy & T.Croat 4209A (MO);
3.1 miles S Pedasi, 30 Jun 1967, D.H.Janzen 1695 (MO);
vicinity of Tonosi, along Quebrado Ocho Paso, 26 Feb 1963, W.L.Stern, R.H.Eyde & E.S.Ayensu 1831 (ILL, MO, US);

Panamá:

La Ermila, San Carlos, 9 Dec 1972, W.Berral 27 (MO);
1 km E of Chorrera City limits, 30 May 1977, J.P.Folsom 3464 (ILL, MO);
4.8 miles NW of the airport on the Inter-American hwy., 1 Jul 1967, D.H.Janzen 1704 (MO);
Old Panama City, 13 Jan 1922, J.M.Greenman & M.T.Greenman 5150 (MO);
Bella Vista, sea level, 16 Oct 1922, E.P.Killip 12044 (US);
Rio Abajo, Sabanas, Feb 1933, Bro. Paul 267 (US);
Agricultural Experiment Station at Matías Hernández, Sep 1914, H.Pittier 6785 (US);
near Matías Hernández, 30 Dec 1923, P.C.Standley 28954 (MO);
Nuevo San Francisco, 12 Jan 1924, P.C.Standley 30737 (US);

Veraguas:

19.9 miles W of Jorones on hwy. from Sona to Remedios, 29 Jun 1967, D.H.Janzen 1666 (MO).