Alpine regions of/the Sierra Nevada. 195 
For purposes of contrast, there is given a list of the alpine flora of the 
Sierra Nevada mountains. A comparison shows a becoming number 
of glacial plants with a greatly increased proportion of endemic species, than we 
find in the Rocky mountains. It is also noteworthy, that the alpine species of 
the Sierra Nevada mountains not only belong to genera which are represented 
by alpine species in the mountain system, but in addition genera occur in the 
Sierra alpine region not present in the Rocky mountains viz., Lupinus, Clay- 
tonia, Calandrinia and Spiraca. The signs affızed are the same as for the 
other table. 
Ranunculus oxynotus Gray. 
Aquilegia caerulea James. 
— Aconitum Fischeri Rchb.; (A. co- 
lumbianum Nutt.). 
Dielytra (Dicentra) unifloraKellogg. 
ı Draba Breweri Wats. 
Arabis Lyallii Wats. 
> platysperma Gray. 
»  Holböllii Hornem. 
Streptanthus orbiculatus Greene. 
» tortuosus Kellogg. 
ı Erysimum asperum DC. 
— Hutchinsia (Smelowskia} calycina 
Desv. 
Viola blanda Willd. 
»  purpurea Kellogg. 
» Beckwithii Torr. & Gray. 
'»  Sheltoni Torr. 
— Stellaria longipes Goldie. 
» erispa C. & S. 
Arenaria congesta Nutt. 
> capillaris Poir. 
> compacta Coville. 
pungens Nutt. 
Calandrinia pygmaea Gray. 
» nevadensis Gray. 
 Claytonia lanceolata Pursh. 
Spraguea umbellata Torr. 
Lewisia brachycarpa Engelm. 
(L. brachycalyx Engelm.). 
—. Andersoni Wates. 
Covillei ‚Greene. 
»  albifrons Benth. 
2. ornatus Dougl. 
I 
Eu. 
Eu. 
Lupinus aridus Dougl. var. Lobbii 
Wats. 
> Breweri Gray. 
» Lyallii Gray. 
Trifolium monanthum Gray. 
Astragalus platytropis Gray. 
> Whitneyi Gray. 
» calycosus Torr. 
> Austinae Gray. 
> kentrophyta Gray var. 
elatus Wats. 
Spiraea arbuscula Greene. 
» discolor Pursh.var. dumosa. 
Geum triflorum Pursh. 
Potentilla dissecta Pursh. 
» Wheeleri Wats. 
» gelida C. A. Meyer. 
—. fruticosa L. 
> procumbens Sibth. 
flabellifolia Hook. 
— En ramheiet. er 
tilla Sibbaldi Hall.). — 
Ivesia (Potentilla) Gordoni Torr. & 
5 ray. 
Pirus sambucifoliaCham.&Schlecht. 
Amelanchier alnifolia Nutt. 
ER — Saxifraga nivalis L. — 
> bryophora Gray. 
» ‚punctata L. 
» ... Tolmiei Torr.& Gray. 
Mitella Breweri Gray. 
»  pentandra Hook. 
Heuchera rubescens Torr. 
Ribes leptanthum Gray. 
13° 
