6 Oi ee tie 
Robinson and Greenman—Mexican Plants. 165 
petioles 8 to 16 lines long, densely pubescent ; stipules subulate, 
reflexed, pubescent upon the lower surface, about 2 lines long, 
at length deciduous: staminate inflorescence elongated fiexuous, 
about 4 inches long, upon peduncles 1 to 4 lines in length: 
pistillate spike oblong, rather loose-flowered, 14 to 14 inches 
long, about two-thirds as broad, peduncles slender, rather rigid, 
ascending, an inch and a half long, cinereous-pubescent below, 
glandular-pubescent above; bracts 1-flowered, 7-parted; each 
seoment lanceolate and green at the base, elongated to slender 
purple filiform tips, 4 to 6 lines in length, bearing numerous 
divaricate glanduliferous hairs: ovary hispid-pubescent toward 
the apex; styles multifid, reddish-purple.—Collected by C. G. 
Pringle, wet cafions, Sierra de San Felipe, Oaxaca, altitude 7,500 
' feet, 138 August, 1894 (No. 4789); and by E. W. Nelson, in the 
vicinity of Sierra de San Felipe, altitude 9,500 to 11,000 feet, 
1 September, 1894 (No. 1165). 
PARIETARIA MACROPHYLLA. Suffrutescent and decumbent at 
base, 1 to 2 feet high, finely pubescent: stem subterete, striate : 
leaves thin, lanceolate, narrowed both ways, mostly caudate- 
attenuate to an obtusish falcate secund tip, punctate, nearly 
glabrous, dark green above, scarcely paler beneath, of variable 
size, the larger 5 inches long, 14 to 14 inches broad, mostly 
3-nerved from the base, on thickish petioles 2 to 24 inches in 
length : inflorescence at first glomerate, becoming looser; the 
axillary cymes 6 to 8 lines long, spreading, very pubescent: 
lobes of the calyx 4, lanceolate, acuminate, about a line long, 
twice the length of the tube, nearly glabrous: fruit becoming 
- black and shining, nearly half line in length.—Collected by E. W. 
Nelson, on the top of the Sierra Madre near Chilpancingo, 
Guerrero, altitude 9,000 to 10,200 feet, 24 December, 1894 (No. 
2231). 
eats ERIOPHORA. Toots several, oblong, fleshy, tuber- 
like: base of stem surrounded by the sheaths of old leaves: 
leaves radical, narrowly oblong-lanceolate, acute, 3 to 4 inches 
long, 3 to 4 lines wide, glabrous: stem a foot to a foot and a 
halt high, glabrous below, densely ferrugineous-lanate above, 
covered throughout its whole length by white and scarious ovate- 
lanceolate attenuate striate bracts: spike 4 to 6 inches long, 
5-10-flowered; floral bracts similar in texture to those of the 
stem, more ovate, exceeding the flowers: flowers sessile: the 
erect ovary as well as the external surface of the outer divisions 
of the strongly deflexed perianth pubescent: the upper sepals 
oblong-lanceolate, acute: the lateral linear-lanceolate, acuminate, 
about 7 lines long: lateral petals adnate to the upper sepal; 
labellum panduriform; margins involute; lateral lobes very 
short, almost obsolete.—Collected by C. G. Pringle, in pine 
woods, Sierra de San Felipe, Oaxaca, altitude 9,000 feet, 31 May, 
1894 (No. 4682). 
SPIRANTHES RUBROCALOSA. Tuberous roots 2 to 4, oblong, 
covered with minute fibres : radical leaves 2, narrowly lanceolate, 
