ig 2 o] SIIRRFF—BIDENS ' 97 



species that exhibit this character, however, is very small compared 

 with the remaining Pacific species that lack it. 8 Moreover, a study 

 of their other characters, such as odor of bruised foliage (when 

 fresh) and shape of ligules, as well as range of distribution, shows 

 them to be much closer to the wingless-achened Bidens species of the 

 Pacific than to the wing-achened American species, Coreopsis 

 lanceolate: L., that must be taken as the type of the genus Coreopsis. 

 It seems wise, therefore, to transfer such species directly to Bidens 

 rather than leave them with Coreopsis, where originally placed by 

 Gray. We shall have even then no greater incongruity in Bidens 

 than must perforce be tolerated in Coreopsis. Thus, for example, 

 all authors who have dealt with the subject have retained the North 

 American wingless-achened Coreopsis rosea Nutt. and C. tinctoria 

 Nutt. in Coreopsis despite their anomalous achenes, because their 

 other characters clearly indicated a closer affinity with Coreopsis. 

 .Manifestly this was the only correct course to pursue, and my 

 own procedure is precisely comparable. 



In the following list, therefore, such transfers are made. In 

 addition, there are transferred certain other species that were 

 described by Gray under Coreopsis (where he placed them because 

 they lacked retrorsely barbed awns; cf. Bot. Gaz. 59:305-308. 

 191 5), or by Hillebrand under Campylotheca. The new names are: 



Bidens molokaiensis (Hillebr.), comb. nov. — Campylotheca 

 molokaiensis Hillebr., Fl. Hawaiian Isls. 212. 1888. 



Bidens macrocarpa (Gray), comb. nov. — Coreopsis (Campylo- 

 theca) macrocarpa Gray, Proc. Amer. Acad. 5: 126. 1862. 



Bidens Remyi (Hillebr.), comb, nov. 9 — Campylotheca Remyi 

 Hillebr., loc. cit., 212; Coreopsis Hillebr andiana Drake del Cast., 

 Illustr. Fl. Ins. Mar. Pacif. 209. 1890. 



8 Cf. Hillebrand's misleading words, "the winged achenes of so many species." 

 Doubtless Hillebrand was recalling many specimens of a few species, and unguardedly 

 referring to them as "so many species." Reference to his individual descriptions 

 shows few of the species to be described as wing-achened. 



' This species was based by Hillebrand upon M. J. Remy 287, a single specimen 

 in Gray Herbarium. I have seen not only the type but an excellent duplicate in Paris 

 (Herb. Mus. Hist. Nat.), also fine specimens collected by Faurie (Herb. Brit. Mus.), 

 Forbes (Herb. Bernice Pauahi Bishop Mus.), etc. The species should not be con- 

 fused with Bidens Remyi Drake del Cast. (Illustr. Fl. Ins. Mar. Pacif. pi. 39. 1888; 

 Coreopsis Remyi Drake del Cast., loc. cit., 210), a species founded upon M. J. Remy 281, 



