ROSE—MEXICAN AND CENTRAL AMERICAN PLANTS. 333 
Eryngium painteri Hemsley & Rose, sp. nov. FicureE 17. 
Perennial, with a short somewhat creeping rootstock producing many long black 
roots; stem rather slender but much stouter than in 2. pringle/, 30 to 70 em, tall, gla-— 
brous, bearing a few much-reduced leaves; basal leaves numerous, 2 to 3 dm. long, 10 
to 15 mm. broad, pungent, parallel-veined, thé face somewhat banded, the margins 
with numerous spinescent linear lobes longer than the breadth of leaf, often bearing 
prickles in the axils; inflorescence a simple terminal umbel, sometimes more com- 
pounded, and the 2 to 5 bract-like leaves below the umbel bearing solitary heads; 
rays (peduncles) 8 to 7 cm. long, slender; flower 
parts, bracts, and sometimes the upper leaves 
more or less deep blue; bracts linear, 1 to 2 cm, 
long, entire, pungent, about as long as the ma- 
ture heads; bractlets linear-ovate, pungent, longer 
than the flowers; sepals ovate, pointed; styles 
about twice as long as the sepals. 
The material seen is all from about Pachuca, 
Hidalgo. 
Specimens examined : 
Near Real del Monte: J. N. Rose, June 2, 
1899 (nos. 4488 and 4489); also Rose and 
Painter, August 31, 1903 (no, 6660). Fig, 17.—Eryngium painteri. 
On the Sierra de Pachuca: C. G. Pringle, 
1898 (no, 6939); also Rose and Hay, July 21 and 22, 1901 (no. 5589) and Rose 
and Painter, September 1, 1903 (no. 6728, type). 
This species is common near the top of mountains growing in the oak and fir 
forests. Its relationships seem to be with /. bromeliaefolium and E, axillifolium, but 
it is more slender and otherwise different. 
Eryngium pilularioides Hemsley & Rose, sp, nov. Figure 18, 
Delicate little annual with slender trailing branches, rooting at the joints; basal 
leaves linear, bollow, parallel-nerved, 6 to 8 cm. long, entire, or with a few (2 to 4) 
marginal bristles toward the base, either obtuse or tipped by a short bristle; stem 
leaves several at each node, somewhat similar to the basal leaves but some at least 
shorter, bristling at base; stipular sheath with white scarious margins; branches 10 cm. 
or more long, flowering from the 
base; heads subsessile or short- 
peduncled, 3 to4 mm. in diameter, 
bracts little exceeding the flowers, 
entire, linear, or a little broader at 
base and here scarious-margined, 
bractlets similar in size and shape 
to the bracts; sepals short, ovate; 
styles shorter than the calyx lobes; 
fruit covered with white ovate 
Fig. 18.—Eryngium pilularioides. papillose scales. 
Collected by C. G. Pringle in 
shallow hollows of meadows in eastern Hidalgo, 1904 (no. 8948). 
This is a very remarkable species, very unlike any material in the National Her- 
barium. The venation seems to be parallel and therefore of the type of FE. yuceae- 
folium as well as of some of the giant species. 
Eryngium pringlei Hemsley & Rose, sp. noy. Fiaure 19, 
Very slender perennial, 30 to 50 em. high; basal leaves narrow, 4 to 5 mm. broad, 
erect, 20 to 30 em. long, the margin bearing many slender bristles in the lower half, 
naked above, pungent at tip; stem leaves few, much reduced; heads few, small, less 
than | em. in diameter, on slender peduncles 2 to 4 cm. long; bracts about 5, small, 
