182 A Collection of Mexican Plants. [ZOE 
back; lip very short, the three teeth acuminate, the central one 
much shorter than the others. 
The bracts and calyx are more or less tinged with red. Col- 
lected on rocky slopes above the timber line of Ixtaccihuatl. No. 
320. 
Krynitzkia Mexicana. Annual, 1 dm. or more high, rough- 
hispid, stems slender, branched; leaves oblanceolate, 1 cm. long; 
flowers in the axils of the leaves and bracts: corolla equalling 
the ovate-lanceolate, yellowish-hispid calyx lobes, 3 mm. long, 
crests inconspicuous: nutlets 114 mm. long, ovate-triangular, the 
angles rounded except near the base, strongly muricate-granulose 
on the rounded back and plane faces, the ventral angle beveled 
from the apex % the length of the nutlet to the deeply exca- 
vated deltoid scar; gynobase subulate—pyramidal. 
This plant is to be compared with K. pusilla Gray, a species 
with the flowers in small spikes that have a naked appearance as 
the mature fruit and calyx gradually falls away from the base 
upward. . Mexicana is upright, more leafy, the flowers not in 
spikes and bears very different, larger nutlets. Collected at 
Viesca, Coahuila, 1903, No. 126. Mr. Pringle’s No. 8301, also 
from Coahuila, is a larger form of the same species with more 
mature and rounder nutlets. 
