84 
CONVOLVULACEAE. 
Ipomoea Batatas Poir. in Lam. Encyc. 6: 14. Espirito Santo, 1891 
(1290). 
Tpomoea macrocalyx (R. & P.) Choisy in DC. Prod. 9: 362 (Convol- 
culus m. R. &P., Fl. Per.2: 10). Espirito Santo, 189t (1279). 
Tpomoea pentaphylla (L.) Jacq. Coll. 2: 297 (Convolvulvus p. L. Sp. 
l. ed. 2, 223). Between Guanai and Tipuani, vnd —June, 1892, 
(1346). 
Ipomoea setifera Poir. in Lam. Encyc. 6: 17? Espirito Santo, 1891 
(1278). Differs from the type in being glabrous and minus 
the awns to the calyx-teeth; but in Z. setifera the degree of de- 
velopment of the latter is variable. 
Ipomoea umbellata L. Syst. ed. 10, 924.  Mapiri, July-Aug., 1892 
x (1482). Determination not free from doubt, as the flowers are 
wanting. 
IPOMOEA MAGNIFOLIA Sp. n. 
Stems terete, glabrate, the younger portions and inflorescence 
pubescent; petioles 1-2 dm. long; blades 1 to nearly 2 dm. long, 
I-I.5 dm. broad, regularly ovate, the base cordate with rounded 
lobes and a sinus of 90 degrees or more, the apex very abruptly 
contracted into a short attenuate point, very thin, above minutely, 
underneath manifestly strigose, the primaries about 5 pairs, fork- 
. weak ; pedicels stout, 2 cm. long; calyx 1.5 cm. long, cieft three- 
fourths of the way to the base, the lobes erect, ovate, acuminate 
and acute, finely and obscurely nerved, the outer longer ; corolla 
open-campanulate, about 8 cm. long, 5 cm. broad, red-purple with 
whitish tube and throat; stamens two-thirds the length of the 
corolla, unequal, the anthers 5 mm. long, 1.5 mm. broad, lance- 
ovate, sagittate ; style equalling the stamens, the vadam sub-glo- 
bose, lightly 3-lobed; ovary 3-celled; fruit not s 
Espirito Santo, 1891 (1277). Apparently near il pandurata. 
Jacquemontia Blanchett’ Moric. Nouv. Pl. Am. A. 27. Between 
Guanai and Tipuani, Apr—June, 1891 (1393). Same collected 
by Dr. Morong in Paraguay. 
JACQUEMONTIA ACUMINATA sp. n 
. Ferruginous-tomentose throu the branches terete, stout- 
ish, the internodes 5—8 cm. long; petioles 3-5 cm. long, blades 
12 cm. long, 4-6 cm. broad, regularly ovate, the sinus shallow and 
broad, the apex abruptly attenuate and very acute, the margin ob- 
