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 § Kuesebeckia, 

 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). 



Randia Watsoni. (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 tliis 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 ouler surface; 

 limb abruptly spreading, nearly or quite an inch in breadth ; segments 

 oval : anthers oblong, apiculate, sessile in the oritice of the corolla : 

 stigma 2-lobed. 



Valeriana Palmeri, 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). 



Stevia skrrata, Cav., var. ovai.is. 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. 



Guardiola rotundifolia. Glabrous : stem rigid, brown, finely 

 furrowed : leaves thickish, ovate-orbicular, closely sessile and clasping, 

 remotely denticulate, cuspidate, glaucous, 1^—2 5- inches in diameter: 

 inflorescences about 3-headed, closely subtended by floral leaves : scales 

 of the involucre 4-5 lines long, finely striated, ovate, narrowed to an 

 obtuse point : achenes 2-J- 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. platyphytta, Gray, but with larger, more orbicular, less dentate, 

 and more clasping leaves ; fewer larger heads, with broader involucral 

 bracts. 



Liabum cervinum. Arachnoid-tomentose, 2 feet in height: stem 



