102 



plantj: weightianj: 



T 



spinosa ; the stems herbaceous from a suffri 



uch branched 



rigid. 



Cauline leaves seven or eight lines long and scarcely a line wide, those of the 



branches successively smaller and more subulate. Involucre of 



heads 



three 



o 



of the fertile. unknown 



308. Tessaria (P 



nudum, pappi 



fl. hermaph. clavel 



lata:) b 

 ceolatis 



fruticosa, argenteo 



ramis conferte foliosissimis ; foliis lan 



teg 



sessilibus 



capi 



subsessilibus paucis 



mboso-confertis 



olu 



cam 



squamis exterioribus 



tomen 



ibus linearibus apice scarioso-iimbriatis ; floribus hermaphroditis 6-8 



Tcssaria boreal 



To) 



Grat/, in Emori/, JRep. p. 143 ; Grav, Pl. Fendl 



p. 75, adnot. Polypappus sericeus, iV 



Pl. Gamh 



Jour. Acad. Philad 



Me 



) 1. p. 178 

 xico: Oct. 



Sand-banks on tl 

 (Called Cachimilla.) 



Grande at Presidio de San Elisario. New 



This 



De Candolle's second 

 is naked, showing sct 



cely 



remarkable plant accords sufficiently 

 of Tessaria, Puiz ^ Pav., except that the 



a 



of 



hairs. and the bristles 



of the pappus of the hermaphrodite flowers are conspicuously clavellate at the apex 

 These central flowers are apparently fertile, although the style is undivided, as i 



like 

 base 



g 



Tessar 



The anthers are manifestly caudate at the 



than in the South American 



•le 



The pappus occupies 



The involucre, receptacle, and the habit of the ulant are much 



Berthelotia lanceolata, DC, which, moreover, has the anthers nearly as much 



those of Tessar 



of Tessaria, the pappus of the s 



paleaceous-concreted at the base 



must stand side by side, 



309. CoNY 



Moreover, in at least one species of the first 



phrodite-sterile flower is moi 



less 



that 



genera are nearly related, and 



DC. P 



Borders of a pond, in a valley between the Pecos and the Limpia ; Auo-. 



this is 



undescribed species ; but the specimens perfectly 



5. p. 379 ? Gray, Pl. Fendl. p. 78 



Perhaps 



d 



De Can 



description, except that the « adnate-sessile " base of the leaf is very little de 



of the leaves are even pinnatifid-toothed, the stems 



hirsute, and 

 are still 



the heads, which in Fendlefs specimen are barely two lines in diameter, are 

 smaller (but much more numerous and crowded) in Wrighfs plant.* 



:|: BoRRicHiA FRUTESCENS, DC. Prodr. 5. p. 489. Between Western Texas and 



ElPaso 



of 185 



A form with broad and toothed 



ing green and glabrate. 



t EcLiPTA ERECTA, ^. BRACHYPODA, Torr. 8f Gvay, Fl. 2. p. 269 

 Xjrande, below El Paso ; Oct. 



the 



becom 



Along the Rio 



310. EuPHRosYNE AMERosi^^FOLiA (sp. uov.) i viUoso-hispido ; foliis 2 - 3-pinnati 



par 



subfoliosis 



oluci 



1 



margine vix scariosis ; acheniis sub turgidis 



squamis exterioribus 5 ovatis acuminatis 



of 



Sept. — A coarse cinereous-hirsute plant, two or threefeet high 



Mountains near El Pa 



The root is annual, as I suppose is that of E. parthenifolia 



4 



4 



