what reflexed: stamens rather few ; filaments filiform ant 
a PITTONIA. 
very short: nutlets minute, brown, obliquely pyriform 
very faintly reticulate with lighter-colored markings. 
Common in dry open pine woods of the foothills of th 
Sierra Nevada, California. , 
PorENTILLA HaxsENr. P. glandulosa, var. Nevadens 
Greene, l. c. as to descr.; partly also of Wats. More tru 
hirsute, often 2 or 3 feet high, slender, the inflorescen 
more naked and fastigiately contracted: petals light 
low, more than equalling the calyx-segments, not reflex 
scarcely even rotately spreading: filaments filiform ¢ 
elongated. : d 
Plant common in the middle and higher Sierras of Ca 
fornia, growing always in moist land bordering on strean 
or marshes. It may or may not be the real type of Mr. 
Watson’s var. Nevadensis, which is, however manifestly | 
aggregate. Nor can the name be taken up for any speci 
POTENTILLA LActEA. P. glandulosa, var. lactea, Gree 
l.c. Delicately and not notably hirsutulous, scarcely gland- 
ular, 2 feet high, of more loosely cymose branching than the 
last: calyx-segments narrow and elongated, lanceolate-acu- 
minate, surpassed by the broadly obovoid very obtuse whi 
petals. 2 
Common at middle elevations in the southern Si 
Nevada, Cal.; also appearing to form at part of the W 
sonian P. glandulosa, var. Nevadensis. sb 
POTENTILLA VALIDA. Near P. arguta, similarly stout, sim- 
ple, erect and striate, with similar foliage and pubescent 
but the inflorescence loosely and regularly dichoton 
forming an eventually open and almost flat-topped cy i 
