646 PROCEEDINGS OF THE AMERICAN ACADEMY 



flowers seem never to be viscid. Nor is Nuttall's name much more 

 appropriate for a species which, though commonly low, is occasionally 

 six feet high. It exhibits several but obviously confluent varieties, 

 of which the following represent the extreme forms : — 



Var. stenophylla ; with very narrowly linear leaves, half a line 

 wide. Northwestern Nevada, S. Watson in King's Expl. 



Var. latipolia {Linosyris viscidiflora var. latifolia Eaton in Bot. 

 King, p. 157), with oblong leaves 1 - H inches long and half an inch 

 wide. Northwestern Nevada, S. Watson. These two are glabrous 

 forms. 



Var. serrulata (Linosyris serrulata Torr. in Stansb. Rep.) has 

 the margins of the leaves ciliate or as if serrulate with rigid, short 

 bristles ; otherwise glabrous or nearly so. A common form in the 

 interior dry region. 



Var. tortifolia ; like the preceding, but the leaves twisted re- 

 markably. Sierra Nevada, California, Brewer; Mt. Davidson, Ne- 

 vada, Bloomer. 



Var. puberula (Ghrysothamnus pumilus Nutt., pro parte. Lino- 

 syris viscidiflora var. puberula Eaton, Bot. King) ; ' with leaves, 

 branches, etc., pulvernlently or almost hispidly puberulent. Not rare 

 in the interior districts. 



§ 5. Eubigelovia. (Bigelowice genuince DC.) Involucrum 3 - 

 4-florum, angustum ; squamis paucis siccis flavidis oblongo- 

 linearibus obtusis carinatis pentastichis vel subtetrastichis in 

 utraque seriei 2 - 3 : receptaculum parvum, alveolis subulato- 

 de'ntiformibus, in centro longe cuspidatum : corolla? lirabus ampli- 

 atus 5-fidus: appendices styli ovato-subulatas, parte stigmatica 

 breviuscula breviores : achenia brevia subturbinata : pappi seta? 

 pauciuscula?, rigidulae. 



24. B. nudata DC. Mem. Comp. t. 5, & Prodr. 5, p. 329. 

 Forma spathidcefolia, Torr. & Gray, 1. c, & 



Var. virgata Torr & Gray, 1. c. B. virgata DC. — Pine barrens 

 in damp soil. Texas to New Jersey, near the coast.* 



* Species Exclusce. 

 Linosyris squamata Gray in Proc. Am. Acad. 8, p 290, is a Senecionea. 

 L. Texana Torr. & Gray Fl., is Baccharis Texana Gray, PI. Fendl. p. 75. 

 L. ? humilis Torr. & Gray, 1. c. (Crinitaria humilis Hook.), is Brachjactis. 

 L. ramulosa Gray, PI. Wright., is Baccharis ramulosa Gray, PI. Thurb. p. 301. 

 L carnosa Gray, PI. Wright., 2, p. 80, is most probably an Aster of the Oxytripo- 

 lium section, without rays. 



