11 



received recently from Miss Eunice Treuil, of Junior, Plaque- 

 mines Parish, Louisiana, who reports it as plentiful upon live 

 oaks. Nine species of Epidendrum are reported from the south- 

 eastern United States but all the others are confined to Florida. 

 The genus includes a large number of epiphytic species which 

 are widely distributed in tropical regions. This one is not a 

 showy plant, with its small greenish flowers. 



In Mohr's Plant Life of Alabama* the range of Epidendrum 

 conopseum is said to extend to Mississippi, but upon what informa- 

 tion this statement is based is not apparent. The only specimen 

 in the Mohr Herbarium is from Alabama. Doctor Mohr states 

 that the species is not rare in the coastal plain of Alabama, 

 growing on magnolias and live oaks in dense damp woods. 



The original description was based upon plants collected in 

 Florida by William Bartram. The accompanying illustration 

 is from a photograph made at Washington of plants forwarded 

 by Miss Treuil. 

 ' Washington, D. C. 



: CHARACTERS OF HELIANTHUS 



By T. D. a. Cockerell 



Although Helianthus , as typified by the common sunflower, is 

 a very easily recognized genus, there are many species which it 

 is not so easy to place. Mr. S. F, Blakej has very recently 

 given a table in which Helianthus is distinguished from its 

 nearest allies as follows : 



Pappus caducous, of paleaceous awns and rarely short squamel- 



lae; herbs. Helianthus L. 



Pappus more persistent (caducous in some Viguieras, e. g., V. 



man'doni Sch. Bip.); awns often aristate; squamellae 



usually present; herbs or shrubs. 

 Squamellae none, or narrow and acute; achenes usually 



densely villous; alternate-leaved usually glutinous shrubs. Flourensia D.C. 

 Squamellae present, mostly short, rounded, fimbriate; 



herbaceous or frutescent, very rarely resiniferous, often 



opposite-leaved. Viguiera H.B.K. 



* Contr. U. S. Nat. Herb. 6: 460. 



t Proc. Amer. Acad., 49: 350. S. 1913. 



