House: North American Convolvulaceae 101 



1895; Morelos, Bi/u/u'i' 99, 1866, Pringlc S012, 1899; Chihu- 

 ahua, Palmer 2g^, 2g6, 1885. 



Exogonium bracteatum pubescens (Rob. & Greenm.) 



Iponioca bractcata var. pubescens Rob. & Greenm. Am. Jour. Sci. 

 50: 160. 1895. 



Me.xicu ; Jalisco, Barranca near Guadalajara, Pringle 47 J4, 1894. 



6. Exogonium jalapoides (Griseb.) 



Ipomoca jalapoides Griseb. Cat. PI. Cub. 202. 1866. 



Stems woody below, densely pubescent : leaf-blades oblong- 

 lanceolate, entire, 3-5 cm. long, or 3-lobed at the base, the middle 

 lobe lanceolate, 4-5 cm. long, lateral lobes oblique, 2 cm. long or 

 less, densely appressed-pubescent above : peduncles 1-3 flowered : 

 sepals oblong, obtuse, 7-9 mm. long, densely tomentosc without : 

 corolla scarlet, the limb fully 4 cm. broad. 



Type locality : Cuba. 



Distribution : Cuba. 



Specimens examined : C. Wright jogj (co-type in herb. 

 Columbia Univ.). 



7. Exogonium fuchsioides (Griseb.) 



Ipoinoea fiichsioides Gri.seb. Cat. PI. Cub. 205. 1866. 



Stems finely appressed-pubescent : leaf-blades narrowly ovate- 

 lanceolate, acuminate, rounded or subcordate at the base, green 

 and appressed-pubescent above, pale and sericeous-pubescent 

 beneath, 2-4 cm. long, sometimes 5-7 cm. long, obtuse, 3-4 cm. 

 wide and obtusely auricled at the base : pedicels and calyx gla- 

 brous : sepals unequal, 5-6 mm. long, obtuse, tinged with red : 

 corolla-tube 3 cm. long, 4-5 mm. in diameter; limb crimson, 

 1.5-2 cm. broad with 5 rounded lobes. 



Type locality : Cuba, " Bahia Honda." 



Distribution : Cuba. 



Specimens examined: C. Wright j^og 5 (in herb. Gray). The 

 co-type in the Gray Herbarium is mixed with the entire-leaved 

 form of E,. microdactylnm, which perhaps accounts for the mistaken 

 identification of the latter in most herbaria as " Ipomoea fuchsioides." 

 The variety parvifolia Griseb. /. c. appears to be but a small 

 leaf-form, while the variety glabra belongs to the entire-leafed 

 variety of E. microdactylum. 



