42 Muhlenbergia, Volume 3 
ones much shorter, ovate, obtuse: corolla scarlet, slender, almost 
tubular and somewhat bent, 5-6cm. long, the limb with five 
small acute lobes, scarcely spreading, about 1.5 cm. broad. 
Mexico: “Faldas del Volcan de Colima,” Barcena (no. 214), 
1881. Type in the herbarium of Manuel Urbina, Museo Naci- 
onal Mexicana. 
The type sheet bears the identification “7. L/aveana Meissn.” 
to which it bears no close resemblance or relationship, being in- 
stead, related to 7. dubza, simulans and emetica. 
vIpomoea concinna 
Slender, herbaceous, twining: stems puberulent above, the 
internodes elongated: leaf blades ovate, acuminate and mucron- 
ulate, the base sagittate-cordate, entire, 1.5-5cm. long, I-3 cm. 
broad, somewhat clasping the stem; petioles very short, 2-5 mm. 
long: peduncles usually exceeding the subtending leaves, 3-5 cm. 
long, filiform, 3-7-flowered: bracts minute, less than 1 mm. long: 
pedicels 6-10 mm. long: sepals equal or nearly so, oblong-ovate, 
the outer ones acute, scarious margined, more or less keeled, 
often with some slight pubescence, the inner ones obtuse, glab- 
rous: corolla about 2cm. long, funnelform, the white tube ex- 
panding into a 5-lobed, blue limb: 
Mexico: “Valle de Ahualuco, E. de Jalisco,” Barcena (no. 
553), September, 1887. ‘Type in the herbarium of Manuel Ur- 
bina, Museo Nacional Mexicana. 
Ipomoea callida 
Twining, stout, perennial, at least below: stems puberulent 
above, otherwise glabrous: leaf blades triangular in outline, 
6-12 cm. long, 4-6cm. broad at the base, strongly sagittate, acu- 
minate, thick textured, glabrous, the basal lobes acute or obtuse, 
somewhat spreading, the sinus open and rounded: petioles 
shorter than the blades: peduncles exceeding the subtending 
petioles, 5-10cm. long, 5-10-flowered in a rather close cyme: 
bracts minute or wanting: pedicels jointed, the ultimate seg- 
ments about 1cm. long: sepals very unequal, the inner longer, 
