’ STANDLEY—STUDIES OF TROPICAL AMERICAN PHANEROGAMS. 451 
Lowest leaflets rounded to sub- 
cordate at the base, never 
auriculate, not constricted ; 
calyx lobes pubescent. 
Calyx lobes more than half as 
long as the corolla tube, 
glabrous outside; leaflets 
oval to elliptic_-_.--._---- 12. C. trianaei. 
Calyx lobes much less than 
half as Jong as the corolla 
tube, pubescent over all 
or nearly all the outer 
surface; leaflets narrowly 
oblong, narrowed toward 
the apex. 
Leaflets glabrous; calyx lobes 
sparsely puberulent_____ 18. C. pachysepala, 
Leaflets loosely villous  be- 
neath; calyx lobes dense- 
ly tomentulose ________-- 14. C. tomentulosa, 
1, Cobaea pendulifiora (Karst.) Hook. f. Curtis's Bot. Mag. 95: pl. 5757. 1869, 
as to name only. 
Rosenbergia penduliflora Karst. Fl. Columb. 1: 27. pl. 14. 1858. 
TYPE LOCALITY: Caracas, Venezuela. 
RANGE: Venezuela. Brand also reports’ collections from Ecuador and Peru. 
Whether they really are of this species, or belong to C. hookeriana, or are 
undescribed, can not be determined without an examination of the specimens.’ 
InLustTRaTIONS: Brand in Engl. Pflanzenreich 27: f. 8. 
No collections of this have been seen by the writer, but it is so well por- 
trayed in Karsten’s colored plate (copied by Brand) that there can be no doubt 
concerning its characteristics. In his description of this species, Brand contra- 
dicts his key to the two species which he refers to his section Rosenbergia. 
Cobaca pendulifiora and C. gracilis are distinguished in the key by a single 
character, the former having “flores virides,” and the latter “ flores lutei.” 
In the description of Cobaea penduliflora, however, the corolla is described as 
“ viridi-rubescenti ” and “ sordide violaceis.”’ The same author cites plate 5757 
of the Botanical Magazine as representing this species, but his abbreviation of 
Karsten’s description has not been so amended as to include the plant figured 
there. 
2. Cobaea hookeriana Standley, sp. nov. PLatTe 26. 
Cobaea pendulifiora Hook. f. Curtis’s Bot. Mag. 95: pl. 5757. 1869, not Rosen. 
bergia pendulifiora Karst. 1858. 
Stems slender, glabrous; leaves 7 to 12 cm. long, the leaflets oblong, 35 to 
50 mm. long, pale green, thin, acute or acuminate, obtuse to subcordate at the 
base, conspicuously petiolulate; peduncles solitary, 20 to 25 cm, long, the flowers 
pendulous; calyx segments united only at the base, 35 to 40 mm. long, narrowly 
oblong, acute or acuminate, glabrous, green; corolla pale green, 10 to 12.5 em. 
long, the tube 20 to 25 mm. long, campanulate, the Jobes broadly linear, 4 to 5 
mm. broad, of about the same length throughout, undulate, bifid at the apex, 
the sinuses between the lobes acute; stamens spreading, the filaments 7.5 em. 
In Engl. Pflanzenreich 27: 28. 1907. 
8211°—14——3 
