11 



LVCOPODIACEAE 



Lycopodiuni adpressitm (Chapm.) Lloyd & Underw.— Southold in a sandy bog. 



^'o. 3455- 

 L. obscuniiii L. — Moist woods at Orient and Southold. 



(To be coiitiiuied) 



NEW COMBINATIONS FOR PHANEROGAMIC NAMES 



Bv J. C. Arthur 



In order to secure uniformity in citing the names of hosts for 

 species of Uredinales the following new combinations are pro- 

 posed. So far as the writer can ascertain these combinations 

 have not been made before, and in coming to this conclusion he 

 has had the kindly assistance of a number of correspondents. 



Cnidoscolus urens (L.) comb. nov. (Jatropha urens L. Sp. PI. 

 1007. 1/53). A common plant of tropical America, bearing 

 llromyccs oaxacanus Diet. & Holw. 



V, Adenoropium angustifolium (Griseb.) comb. nov. {Jatropha 

 angiistifolia Griseb. ; Goett. Xachr. 171. 1865). A Cuban species 

 bearing the imperfectly known rust Uredo jatrophicola Arth. 



., Vincetoxicum bifidum (Hemsl.) comb. nov. (Gonolobus bifidus 

 Hemsl., Biol. Centr. Am. Bot. 2: 330. 1879). 



Vincetoxicum erianthum (Decaisne) comb. nov. (Gonolobus 

 erianthus Decaisne; DC. Prodr. 8: 592. 1844). 



t Vincetoxicum uniflorum (H.B.K.) comb. nov. {Gonolobus tini- 

 flonis H.B.K. Nov. Gen. Sp. 3: 207. 1818). These three Mex- 

 ican species of Vincetoxicum, belonging to the Asclepiadaceae, 

 bear the very common tropical rust Puccinia obliqua Berk. & 

 Curt. 



Sphaeralcea arcuata (Greene) comb. nov. (Malvastrum ar- 

 cuatnm Robinson; A. Gray, Synop. Fl. N. Am. iM 311. 1878). 



Sphaeralcea fasciculata (Nutt.) comb. nov. {Malva fascicu- 

 lata Nutt; T. & G. Flora N. Am. i: 225. 1838). These two 

 Californian species belonging to Malvaceae bear the common 

 western rust Puccinia Shcrardiana Korn. 



