STANDLEY—STUDIES OF TROPICAL AMERICAN PHANEROGAMS. 455 
9. Cobaea triflora Donn. Smith, Bot. Gaz. 18: 75. 1888. 
Cobaea macrostoma triflora Brand in Engl. Pflanzenreich 27: 26. 1907. 
Rosenbergia triflora House, Muhlenbergia 4: 25. 1908. 
TYPE LOCALITY: Banks of the Rio Cajabén, near Cobfin, Department of Alta 
Verapaz, Guatemala, at an altitude of 1,290 meters. Type collected by H. von 
Tiirckheim (no. 204). 
Rance: Known only from type collection. 
SPECIMENS EXAMINED: 
GUATEMALA: Type specimen. 
The fruit, which has not been described, may be characterized as follows: 
Capsule elliptic or elliptic-oval in outline, about 43 mm. long and 18 mm. broad, 
acute, glabrous; seeds 2 or 3 in each cell, oval, 20 to 22 mm. long, 10 to 12 mm. 
wide, acute at the apex, deeply retuse at the base, the wings very broad, entire. 
The transference of this species to rank as a subspecies of Cobaea macrostoma 
was unfortunate, since the two are not closely related. This is at once apparent 
upon comparing the original descriptions. Indeed, they are as distinct from 
each other as any other two species of the genus. The corolla lobes of Cobaca 
triflora are broadly rounded, while those of C. lutea (macrostoma) are acumi- 
nate. In the latter the stamens are long exserted, while in C. triflora they 
only slightly exceed the corolla. The only differences which Brand indicated 
between the two plants were the slightly different outline of the leaflets and 
the ternate rather than solitary arrangement of the peduncles of triflora. The 
flowers of this species seem to be more often solitary than in threes in the 
specimens seen by the writer, while in Cobaea lutea the peduncles are not 
always solitary. 
Brand’s error with regard to Cobaea triflora can be better understood after 
noting the specimens he cites under Cobaea macrostoma triflora. Three are 
enumerated. The first, collected in Guatemala by C. and E. Seler (no. 2293), 
the writer has not seen. The second is the type collection of Cobaea triflora. 
The third is Heyde and Lux’s no. 3987, which is here referred to Cobaea lutea. 
House? in his treatment of Rosenbergia, refers to Brand’s confusion of 
Cobaea macrostoma and C. triflora; but he himself does not clarify matters, for 
the only specimen which he cites under triflora is very different from Captain 
Smith’s type and is evidently of the species here called C. lutea. 
40. Cobaea campanulata Hemsl. The Garden 17: 352. 1880. 
Rosenbergia campanulata House, Muhlenbergia 4: 24. 1908. 
TYPE LOCALITY: Atacama, Chile. Type collected by Hinds, 
RaNcE: Known only from the type collection. 
Hemsley describes the calyx segments as hirsute. The pubescence of the 
calyx in other species is villous and composed of jointed hairs. Probably it 
is not essentially different in the South American plant. 
11. Cobaea minor Mart. & Gal. Bull. Acad. Sci. Brux. 12: 276. 1845. 
Rosenbergia minor House, Muhlenbergia 4: 24. 1908. 
TYPE LOCALITY: Mountain of Orizaba, Mexico, at 3,000 meters. Type col- 
lected by Galeotti (no. 1447). 
Rance: Southern Mexico to Costa Rica. 
SPECIMENS EXAMINED: 
Mexico: Pié d’ Orizaba, Vera Cruz, Galeotti 1447. 
Costa Rica: Volefin de Turrialba, Province of Cartago, alt. 2,400 meters, 
Pittier (Inst Fis. Geogr. Costa Rica, no. 18075; J. D. Smith, no. 7539). 
?Muhlenbergia 4: 22, 1908. 
