ROSE—-MEXICAN AND CENTRAL AMERICAN PLANTS. 281 
wanting; racemes terminal, elongated, sometimes 20 em. long; pedicels slender, 1 to 
1.5 em. long; sepals glabrous, obtuse, alternating with small gland-tipped appendages; 
flower buds reddish; petals yellow, obtuse, 8 mm. long; fruit glabrous. 
Collected by J. N. Rose on the road between Concepcién and Acaponeta, Tepic, 
July 29, 1897 (no. 1907). 
Type U. 8. National Herbarium no. 300792. 
Thryallis latifolia (Bartl.) Kuntze. 
Thryallis linifolia (A. Gray) Kuntze. 
Thryallis montana Rose, sp. nov. 
Asmall shrub 1 to 2 meters high; branches reddish, glabrous; blade broadly ovate, 
3 to 4em, long, 15 to 25 mm. broad, acute or sometimes rounded at apex, rounded 
or broadly cuneate at apex, bearing two sessile glands at base; petiole 5 to 7 mm. 
long; racemes 4 to 10 cm. long, slightly pubescent; pedicels 10 to 12 mm. long, 
jointed much below the middle; sepals oblong, glabrous, obtuse; petals 8 mm. long 
including the slender claw; fruit 4 mm. long. 
Collected by J. N. Rose in southern Durango, August 15, 1897 (no. 2309). 
Somewhat resembling 7. ovata, but glands nearer the base of the leaf blade, the 
flowers smaller, ete. . 
Type in U.S. National Herbarium no. 301220. 
Thryallis multicaulis (A. Juss.) Kuntze. 
Thryallis palmeri Rose. 
Galphimia glandulosa Rose, Contr. Nat. Herb. 5: 137. 1897, not Cav. 1899. 
Thryallis paniculata (Bartl.) Kuntze. 
Thryallis sessilifolia Rose. 
Galphimia sessilifolia Rose, Contr. Nat. Herb. 8: 313. 1895. 
Thryallis tuberculata Rose, sp. noy. 
Low shrub, the young branches tuberculately roughened, each little knob crowned 
by a two-branched brown hair; leaf oblong, 3 to 5 em. long, 7 to 12 mm. broad, 
obtuse, cuneate at base; petiole and mid-vein roughened like the petiole, otherwise 
glabrous, pale beneath, bearing two stalked glands at base of blade; raceme 10 to 15 
cm. long, roughened like the stems; pedicels 10 mm. or so long; sepals oblong, 
obtuse, 3 mm. long; petals 8 mm. long; fruit not seen. 
Collected by J. N. Rose between Rosario and Colomas, July 12, 1897 (no. 1607). 
Not closely related to any other Mexican species. Easily distinguished by its 
roughened stem. 
Type U. 8. National Herbarium no. 300453. 
Thryallis vestita (S. Wats.) Rose. 
Galphimia vestita S. Wats. Proc. Am. Acad. 21: 421. 1886. 
EUPHORBIACEAE. 
A NEW COMBINATION IN CNIDOSCOLUS AND A NEW SPECIES OF 
MOZINNA. 
The genus Jatropha as treated by Miiller* and most writers since 
his time contains several well-marked genera with good fruit, flower, 
and habit characters. Dr. J. K. Small” has recently restored Cnidos- 
colus Pohl. and Mozinna Ort. . 
aPC. Prod. 15: 1076. 1864-66. b Fl. Southeast. U.S. 706. 1903. 
