ROBINSON. — MEXICAN PLANTS. 321 



calyx subequal, lance-linear, acutish, scarcely exceeding 1-$ lines in 

 length : corolla G-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 (2-2^- lines in 

 length). — Collected on mossy gravel bluffs near Guadalajara, 23 

 Juue, 1893 (no. 4397). An attractive little species distinguished by 

 its paucity of foliage. 



Vitex 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- 

 toothe J : 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). 

 Dr. 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. Pringle'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. 



Cytinds oxylepis. 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: scales 

 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 

 lobed ; ovaries more than half immersed in the thickened axis of the 

 inflorescence ; placentae 5-6. — Collected on lava beds near Zapotlan, 

 13 and 27 May, 1893 (no. 4373). A fungoid parasite upon woody 

 vol xxix. (x. s. xxi ) 21 



