ROBINSON. — ALSINE. 297 
ing at the base: the internodes an inch or two long: inflorescence 
dichotomous, few to many flowered: sepals attenuate, glandular, nearly 
equalling the obovate petals (23-3 lines in length) : capsule commonly 
a fourth shorter. — Pl. Fendl. 13; Torr. Pacif. R. Rep. iv. 69; Wats. 
Bot. King Exp. 40, exclusive of var. glabrescens ; Porter & Coulter, 
Fl. Col. 13. — Chiefly in the Rocky Mts., but sometimes among the 
sage-brush of the plains. Nebraska, Engelmann; Colorado to New 
Mexico, G. R. Vasey; San Francisco Mts., Arizona, Lemmon; Los 
Angeles, Cal., Nevin. The var. pirrusa of Prof. Porter’s Fl. Col. 
is a greener form from the Rocky Mts. of Colorado and Wyoming with 
4 more lax and spreading inflorescence and often although not always 
larger flowers. It intergrades with the type, so that in herbarium 
Specimens at least its separation is often unsatisfactory. A form col- 
lected by Prof. Porter in the Garden of the Gods, and possessing very 
small flowers (sepals 11-14 lines in length) upon curved and spread- 
ing branches, is perhaps equally worthy of varietal distinction. 
++ ++ Flowers densely fascicled at the summit of the stem. 
A. Franklinii, Dove:. Caudex of numerous procumbent more 
or less elongated branches, covered with somewhat persistent dried 
leaves: stems quite smooth, erect, simple, 3-5 inches high, somewhat 
rigid but fragile, bearing 3-6 pairs of narrowly subulate pungent 
Spreading smooth or ciliolate and minutely scabrous leaves (5—9 lines 
long) : cymes dense, sub-involucrate : sepals elongated, attenuate, pun- 
: A. Hookeri, Nurr. Caudex densely multicipital: stems 1-4 
Inches high, pubescent: Jeaves shorter than in the last: flowers 
eee and petals about equalling or slightly exceeding the sepals. — 
Nutt. in Torr, & Gray, Fl. i. 178. A. Franklinii, var. minor, Hook. 
© Arn. Bot. Beech. 326; Wats. Bibl. Index, 95; Coulter, Man. 
Rocky Mt. Bot. 35. 4. Franklinii, Engelm. Trans. Am. Phil. Soc. 
». ser. xii. 186; Coulter, }. ¢. 35 in great part; Hook. & Jackson, 
Index Kew. 179. — Rocky Mts., lat. 40°, Nuttall ; Colorado, Vasey ; 
Wyoming, Hayden, P. arry, Porter, Greene, Sheldon; Plains of Green 
thnk Gray; Nebraska, Rydberg, Webber; Montana, Tweedy. This 
“pecies with much the habit of the preceding differs in its much denser 
caudex and constantly pubescent stem, as well as in the differences a 
