Volume 5 June 9, 1909 



MUHLENBERGIA 



LIBRA 

 NEW Y( 



HO- 



By Homer Dolliver House a • 



NOTES ON CONVOLVULACEAE 



During the course of inv investigations upon the North 

 American species of Ipomoca^ the results of which were pub- 

 lished early in 1908, in the Annals of the New York Academy 

 of Sciences, considerable material accumulated relating to oilier 

 genera of the family, which together with a few corrections in 

 Ipouwca, it is the writer's purpose to present here. 



Convolvulus 

 Convolvulus oreophilus sp. nov. 



Related to C. incanus; stems 5 to 100 cm. long, trailing or 

 prostrate, whitish with a dense fine silks- indument, older parts 

 green, finely pubescent or canescent: leaf blades narrowly or 

 broadly ovate, cordate-hastate, obtuse at the apex, 2 to 5 cm. 

 long, the basal auricles spreading, with several obtuse teeth or 

 small lobes, the margin above the base irregularly crenate- 

 toothed; petioles about one-third the length of the blades, silky 

 villous with fine appressed hairs: peduncles exceeding the leaves, 

 6 to 12 cm. long, 2 to 6-fl iwered: sepals becoming S to 10 mm. 

 long, obtuse or subacute, appressed pubescent, not auricled at 

 the base: corolla white, 2 cm. long, pubescent without on the 

 plicae, the limb angulate: capsules globose, included by the 

 calyx: seeds black, minutely pubescent. 



Mkxico: Near Tehuacan, Puebla, Rose; Painter and Rose 

 99SJ, 1905. Type in the National Herbarium. 



Convolvulus secundiflorus Fernald 



This species, described from Acapulco, Mexico [Palmer J2, 



(65) 



