ROBINSON, — MEXICAN PLANTS. 317 
white, broadly ovate, acute, sharply denticulate, smooth or sparingly 
pubescent upon the outer surface; the three outer ones 9 lines long, 
6 lines broad; the two inner somewhat smaller: pistil of § Knesebeckia, 
A.DC. ; ovary pubescent; capsule 8 lines long, 3-winged; wings un- 
equal, broadest near the base. — Fruiting specimens collected on a 
barranca near Guadalajara, 23 September, 1891 (no. 5178); flowering 
plants of both sexes were collected in rich soil on shaded rocky slopes 
of barranca near Guadalajara, 29 July, 1893 (no. 4474). 
7 Ranvta Wartsont. (R. tomentosa, Wats. Proc. Amer. Acad. 
xxv. 152, not of Blume.) Mr. Pringle’s no. 4383, collected on lava 
beds near Zapotlan, 20 May, 1893, corresponds to the type of Dr. 
Watson’s species except in its somewhat more obtuse leaves, and 
doubtless should be referred to this species. It furnishes the follow- 
ing additional characters: buds clavate, an inch in length, curved 
upward: calyx silky, 3 lines in length; segments short, linear; sinuses 
rounded: corolla tube 9 lines long, hirsute upon the outer surface; 
limb abruptly spreading, nearly or quite an inch in breadth ; segments 
oval: anthers oblong, apiculate, sessile in the orifice of the corolla: 
stigma 2-lobed. . ; 
VaLerIaANA Patmert, Gray. Mr. Pringle’s specimens of this 
plant show that the root terminates in a small oblong tuber-like en- 
largement about half an inch in length. — Collected on shaded banks 
near Guadalajara, 2 September, 1893 (no. 4521). 
Srevia SERRATA, Cav., var. OVALIS. Leaves short, oval, scarcely 
narrowed at the base, 10-12 lines long, 5-7 lines broad. — Collected 
by Dr. Edward Palmer on the Rio Blanca, Jalisco, July, 1886 (no. 
309), and by Mr. Pringle on rocky hills near Guadalajara, 28 August, 
1893 (no. 4491). Mr. Pringle’s no. 602, from Chihuahua, 1886, is 
nearly the same. 
GuarpIoLa RoTUNDIFOLIA. Glabrous: stem rigid, brown, finely 
furrowed: leaves thickish, ovate-orbicular, closely sessile and clasping, 
‘ remotely denticulate, cuspidate, glaucous, 14-24 inches in diameter: 
inflorescences about 3-headed, closely subtended by floral leaves: scales 
of the involuere 4-5 lines long, finely striated, ovate, narrowed to an 
obtuse point: achenes 24 lines in length, mottled, truncate, contracted 
below to a thick short stipe: corollas in a dried state greenish. — Col- 
lected on hills near Tequila, 15 October, 1893 (no. 4571). Near 
G. platyphylla, Gray, but with larger, more orbicular, Tess dentate, 
“8 more clasping leaves; fewer larger heads, with broader involucral 
Tracts, 
Liasum cervinum. Arachnoid-tomentose, 2 feet in height: stem 
