284 PROCEEDINGS OP THE AMERICAN ACADEMY 



P. SiiASTEXSis, Greene in herb. Flores majores ; calyce fructifero 

 lin. 3 longo ; nuculis sesciuilineam longis la^vibus vel ad margines 

 tantum muriculatis. — California, in valley at the base of Mount 

 Shasta, E. L. Greene, coll. 1876. Perhaps only a variety of the pre- 

 ceding, the calyx of which sometimes approaches this in size. 

 = = Nuculaj lato-ovatce, haud cruciatas, 



a. Vitreo-crustacece, vix nitidulaz, obcompressae, dorso vix carinato 

 lineis angustissirais impressis inter rugas latas rectas transversim 

 percur8a3 : caules mox ramosi, diflfuso-procumbentes, cum foliis 

 oblongis (superioribus flores fulcrantibus) hispidulo-hirsuti, papyros 

 herbarii violaceo colore tingentes : calyx haud circumscissus. 



P. ToRREYi. EritricMum Torreyi, Gray, I.e. — In the Yosemite 

 Valley and vicinity ; coll. only by Torrey and Lemmon. 



b. Nuculii3 opaca?, nee vitrea?, nee indurato-crustaceae, dorso parum 

 carinato rugis sparsis angustis prominentibus subreticulatis areo- 

 las multo majores circumscribentibus instructai, sajpeque minutim 

 granulataj. 



1. Calyx 5-partitus vel profunda 5-fidus, sero juxta basim circum- 

 scissus vel persistens : spica? sa^pissime simplices (i. e. cyraas uni- 

 para;), hinc inde foliata?, irregulares : herbas ssepius a basi ramosse 

 et diffusa} ; corolla limbo parvo. 



P. AuizONiCUS, Greene in herb. EritricMum canesccns, var. Art' 

 zom'cum, Gray, Proc. Am. Acad. xvii. 227. Hirsutus, subhispidus 

 pilis patentissimis, nunquam canescens, facie pra^cedenti subsimilis, 

 foliis angustioribus. Calyces fructiferi haud ultra lin. 2 longi, seg- 

 mentis stepius supra fructum conniventibus, basi demum circumscissi. 

 Nuculne matune subcrustaceae, nunc albescentes, rugis acutissirais nunc 

 tuberculis minimis paucis instructis. — Arizona and adjacent borders 

 of Utah, coll. Greene, Palmer, Lemmon, Pringle, Parish, &c. This 

 apparently quite distinct species has been variously distributed under 

 the names of Eritrichium canescens and E. fulvum, which in different 

 forms it most resembles. 



P. CANESCENS, Bcnth. PL Ilartw. 326. Eritrichium canescens, 

 Gray, 1. c. Pilis mollioribus villoso-pubescens, subcanescens. Calyces 

 fructiferi lin. 2-3 longi, aut laxe erecti aut patenti-aperti, persistentes, 

 raro imperfecte circumscissi. Nuculoj rugis obtusioribus. — California, 

 from the valley of the Sacramento to Los Angeles and San Bernar- 

 dino, apparently first collected by Hartiveg. Varies in the degree of 

 accrescence of the calyx, which in the same plant may be either loosely 

 open or erect, or with the lobes somewhat conuivent. 



