414 BOTANICAL GAZETTE [JUNE 
covered on the dorsal angles with a long coma of cinnamon-brown 
hairs. 
aOR West Indies, throughout the Greater Antilles, Cuba, Jamaica, 
St. Domingo, 
Horace: “pha Amer. pl. 9 
Specimens examined: JAMAICA: rere Road, Harris, Jan. 7, 1902; 
Barrack Hill, W. Cradwick, July 1890. CuBa: Wright 1371, 1860-64. 
Ipomoea rubella, nom. nov.—I pomoea pulchella W. Hook. Bot. 
Mag. 73: pl. 4305. 1847; not I. pulchella Roth. Nov. Pl. Sp. 115. 
1821, and others. J. macrorhiza Griseb. Fl. Br. W. Ind. 471. 1864; 
not I. macrorhizos R. & S. Syst. 4:211. 1819, nor I. macrorhiza 
Michx. Fl. Bor. Am. 1:141. 1803. J. Grisebachit Urban, Symb. 
Ant. 3:353. 1903; not I. Grisebachiana Meissn., Peter in Engler & 
Prantl, Natiirl. Pflanzenfam. IV. 3a:30. 18o1. 
Type locality and distribution: oe 
Illustrations: Bot. Mag. pl. 430 
Operculina ornithopoda aa comb. nov.—I pomoea orni- 
thopoda Robinson, Proc. Am. Acad. 2'7:183. 1892; Greenman, /. ¢. 
39:84. 1903. Operculina angustiloba House, Bull. Torr. Bot. Club 
332501. 1906. 
Mexico: San Luis Potosi, hills, Canoas, Pringle no. 3553, July 1890 (type 
in herb. Gray); near San Dieguito, Palmer no. 112, June 12-16, 1904 (type of 
O. angustiloba, in herb U. S. Nat 
en the original descriptions of Operculina Roseana and O. angustiloba 
were drawn up, the identity of them with Ipomoea ornithopoda Rob. was not 
suspected, for the reason that the description of the latter species does not mention 
the character of the operculate capsule. The species has two extremes of leaf- 
form in Mexico: one with very narrow lobes to the leaf-blade, typical O. ornithopoda,; 
and another with cqreaeicd cortepesd and shorter lobes, O. Roseana House, regarded 
GREENMAN as essentially t species. It will be noted, however, that the 
narrow-lobed species (O. ornithopoda), so far as known, is confined to San Luis 
Potosi; while O. Roseana ranges from Sonora to Chiapas and Morelos, quite a 
different geographical and climatic region. Until specimens of intermediate 
distribution and characters are es to light, the writer feels justified in main- 
taining both species. 
CLEMSON COLLEGE, S. C. 
oS as 
