WiEGAXD : Some Species of Bidexs 413 



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awns 4 (rarely 2) unequal, about one half the length of achene, 

 retrorsely barbed. 



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British Columbia near Vancouver. 



Specimens examined : — De Fuca, Scolder, N. W. Coast, in 



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■Gra}' Herb, from Hooker. Vancou\-er Island, Macoun, no. 73. 

 This very distinct species, although collected for the first time 



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many years ago, is represented in the herbaria by only a \'ery few 

 specimens. The three cited abov^e are quite shnilar in general 

 appearance and are characterized by the numerous large pale 

 leaves which are often conspicuously incised, and among which at 

 the summit of the stem the one to three broad and nearly sessile 

 heads are borne. These in form are much like those of j5. ccruua^ 

 but they are erect, the rays are pale and ver}^ short, and the invo- 

 lucre is more foliaceous. The achenes are however quite unlike 

 those of B, cernua^ but are so similar to those of B, comosa as to 

 sometimes render it difficult to distinguish the two species from 

 this character alone. In structural characters this species seems 

 to stand almost intermediate between B. ccriiua and B, comosa on 

 the one hand and between B, ccrmia and B.frondosa on the other. 

 It resembles the B, bnllata L. of Europe Avhich however has ray- 

 less lieads, hairy stem and leaves and always two-awned achenes, 



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7. BiDEXs CONNATA Muhl. Willd. Sp. PI. 3 : 17 18. 1S04. Pursh 



Fl. Am. Sept.; Torn Fl. N. U. S. ? 



B. tripartita Bigclow, Fl. Best. 294 [ed. 2]. 

 B. pctiolata Nutt. Jour. Acad. Philad. 7 : 99. 

 B. tripartitiis var. fallax Warnstorf, Verh. d. Bot. Verein d. 

 Prov. Brand. 21: 157. 1879. 



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392. 1895. 



Stems tall and moderately branched (5-14 dm. high), glabrous 

 •and purplish, internodes rather long, branches usually spreading : 

 leaves undivided or some of the lower ones deeply parted near the 

 base, lanceolate, elliptic-lanceolate, or elliptical, large (12-35 n^"i- x 

 70-130 mm.), acuminate, tapering- at the base, coarsely and sali- 

 ■ently serrate with sharp teeth, bright-green, the petiole slender (2-4 

 cm. long), scarcely margined, or sometimes short and margined : 

 heads of medium size, slightly broader than high (broadest 15 

 mm.), on rather short peduncles ; outer involucral bracts 4-5, lin- 

 ear or spatulate, rarely much exceeding the disk, not ciliate ; inner 

 bracts about 8, brownish, oblong-ovate to elliptic-oblong, mostly 



