ROBINSON. — MEXICAN PLANTS. 321 
calyx subequal, lance-linear, acutish, scarcely exceeding 1} lines in 
length: corolla 6-8 lines long; the limb bluish purple; the segments 
broadly oblong or somewhat spatulate; throat yellow as well as the 
tapering nearly straight or moderately curved spur (2-24 lines in 
length). — Collected on mossy gravel bluffs near Guadalajara, 23 
June, 1893 (no. 4397). An attractive little species distinguished by 
its paucity of foliage. 
Virex PYRAMIDATA. Tall shrub, 10-15 feet in height: branchlets, 
petioles, and inflorescences pulverulent-pubescent: petioles long, deeply 
sulcate above: leaflets 5, elliptic, mucronate, entire, rounded at the 
base, becoming decidedly coriaceous with age, green and smoothish 
above, with sulcate veins and minute reticulation, pale and tomentose 
beneath, 3-4 inches long, nearly half as broad; petiolules 3 lines 
long: the sulcate peduncles springing from the upper axils and bear- 
ing rather dense compound pyramidal panicles, sometimes subtended 
by two trifoliate bracts : calyx scarcely a line in length, shortly 5- 
toothed: corolla strongly bilabiate, about 6 lines long; the tube en- 
larged upward, about equalling the limb; segments rounded, ovate, 
the two upper suberect, the lowest the largest: stamens exserted, 
recurved at the summit, anther cells divergent: fruit 6 lines in di- 
ameter, consisting of a tough exocarp surrounding an irregularly sculp- 
tured woody endocarp, enclosing four 1-seeded cells. — Tequila, Jalisco, 
August, 1886, collected by Dr. Edward Palmer; rediscovered by Mr. 
Pringle on rocky hillsides about Tequila, 29 June, 1893 (no. 4429). 
". Palmer’s fruiting specimen was referred to V. mollis, HBK., by 
Dr. Watson (Proc. Amer. Acad. xxii. 444). He states also that the 
dark brown fruit is eaten by the natives under the name of “ ahuilote.” 
Mr, P ringle’s flowering specimens show the plant to be amply distinct 
from V, mollis, The paniculate inflorescence is rare in American 
Species although common in those of the Old World. 
Crtinus oxy.erts. Fuscous and somewhat granular-tomentose, 
2-3 inches high: the short scaly stem not greatly enlarged at the 
base, and not equalling in length the thick clavate inflorescence: seales 
both of the stem and inflorescence lanceolate or ovate-lanceolate, acu- 
Minate, smooth, spreading, 1} lines in length: flowers bisexual; seg- 
Ments of the perianth 6-7, ovate, acute, granular-fuscous upon the 
back, a line in length, united below into a shallow cup: anthers about 
6, Uniseriate and adnate to the short thick style: stigma obscurely 
} Ovaries more than half immersed in the thickened axis of the 
inflorescence ; placentie 5-6. — Collected on lava beds near Zapotlan, — 
‘Sand 27 May, 1893 (no. 4373). A fangoid parasite upon woody oye 
VOL XxIx. (wy, s, XXI.) 
