64 PROCEEDINGS OF THE AMERICAN ACADEMY 



2. Characters of New Species, &c. 



IsorYRUM STiPiTATUM. Perenne ; radicibus fuscicnlatis ; caulibiis 

 spitham^is versus apicetn 1-2-foliatis 1-2-rioris; foliis radicalibus tri- 

 caulinis saepius bi-ternatisectis, petioliilis primariis secundariisque 

 elonofatis, sesmentis ultimis foliolisve sessilil)us nunc confluentibus 

 lineari-oblongis intefrris vel cuneatis trifidis ; pedunculo sub flore 

 parvo incrassato ; sepalis 4-5 oblongis ; petalis niillis ; staminibus 

 parum 10, filainentis subulato-complanatis : folliculis totidem oblongis 

 utrinque obtusissimis vix venosis 3-4-spermis longiuscule stipitatis. 

 — Northern C^dif()rnia, near Yreka, Siskiyou Co., April, 187G, under 

 Ceanothiis and Oak bushes, Rev. E. L. Greene. A most distinct species ; 

 with flowers much smaller tlian those of T. occidentale, of which it has 

 the habit, although larger than those of T. fumarioides. Stipe of the 

 fruit nearly a Line long. 



Nastuktium traciiycarpum. E radice annua ? erectum, ramosum 

 (pedale), fere glabrum ; foliis lyrato-subpinnaiitidis ; racemis laxis ; 

 floribus albidis ; petalis spathnlatis sepala antherasque oblongo-sagitta- 

 tas parum supeiantibus ; siliquis oblongo-linearibus (lin. 4-5 longis) 

 papilloso-asperatis in pedicello rigido mox recnrvato curvato-adscenden- 

 tibus stylo longo subulato superatis. — S. W. Colorado, on the San 

 Juan, &c., T. S. Brandegee, in Hay den's Expedition, 1875. The 

 rhachis of the raceme and the stout peilicels are more or less studded 

 with the small rough papill;^ which abound on the pod and suggest the 

 name for the specirs, which is a very distinct one. 



Lepidium dictyotdm, Gray, var. ? acutidens, siliculis magis ovatis, 

 dentibus loniiioribus deltoideo- immo subulato-trian<fulatis omnino acu- 

 tis. — California at Yreka, E. L. Greene. 



Claytonia bulbifkka. C. SibiriccB, L. (alsinodei, Sims) similis, 

 sedbulbillis radicalibus bulboso-confertis pereunans; ra'-emis elongandis 

 fulioso-bracteatis ; bracteis spathnlatis sen lineari-oblongis ; sepalis 

 latioribus, fructiferis dilatatis. — Scott Mountains, Siskiyou Co., Cali- 

 fornia, P>. L. Greene. Also received from some other Californian col- 

 lectors, but without the bulbiferous base. To the acute observation of 

 Mr. Greene we are also indebted for an indication of the characters 

 which appear to demand the re-establishment of C. parvijlora, Hook, 

 and perhaps one or two other specicvS. 



Astragalus coi>linus. Dough, var. C\lifornicus, leguminibus 

 cum stipite sesquipoUicaribus purpureo-marmoratis. — Yreka, Califor- 

 nia, E. L. Greene. 



Astragalus FLAVus, Nutt, var. candicans. Canescens ; pedun- 



