COXVOLVULACE^B 275 



above, covered with a silky tomentum beneath, conduplicate in bud ; 

 petioles hairy, tomentose or woolly, subterete. 



No. 1. With a tomentose subterete petiole 3 - 5 cm. long, and 

 1-5 mm. in thickness, and a cordate blade 4 cm. long, and 

 3 cm. wide with deep base and cuspidate apex, plane, pinnati- 

 nerved, with entire, pubescent margin, glabrous and bright green 

 above, tomentose and paler beneath, not very thick ; vernation con- 

 duplicate. 



No. 2. Similar but larger. 



Lettsomia aggregata, Eoxb. 



Hijpocotyl erect, terete, glabrous, very short, about 6-8 mm. 

 long. 



Cotyledons bifid for more than half their length with diverging 

 lobes, subcordate at the base, with the midrib very short and bifur- 

 cate some distance below the base of the sinus representing the true 

 length of the cotyledon, and giving off two strong and one slender 

 lateral nerve into the ascending and diverging lobes, petiolate, 

 glabrous except the petiole, deep green above, paler beneath ; 

 lamina to the base of the sinus 1 cm. long, and the oblong-ovate 

 lobes 1-5-1'G cm. longer; width from tip to tip of the lobes 

 2-2 cm.; petiole subterete, channelled and downy above. 1-1-1-3 

 cm. long. 



Stem stout, erect at first, ultimately twining, densely silky or 

 hairy with adpressed hairs ; 1st internode 5-8 mm. long ; 2nd 

 3-5 mm. 



Leaves simple, entire, cauline, alternate, exstipulate, petiolate, 

 irregularly and alternately, ascendingly penninerved, with the ends 

 of the nerves incurved and uniting one with another, subreticulate, 

 densely silky hairy and subhoary on the under side, and pubescent 

 above, deep green and shining with a silky margin ; petioles sub- 

 terete, channelled above, densely silky hairy. 



Nos. 1 and 2. Rotund-ovate, obtuse, subcordate at the base. 



No. 3. Spathulate, obtuse, entire, cuneate at the base. 



Nos. 4 and 5. Obovate, emarginate, cuneate at the base. 



Ipomoea Pes-caprae, Sweet. 



Ovary of two to three carpels, two- to three-celled, four- to six- 

 ovuled ; ovules two in each cell, erect from the base of the inner 

 angle of the cell, anatropous ; micropyle inferior. 



Capsule globose, two- to three-celled, four- to six-seeded, dehisc- 

 ing by valves. 



Seed obtusely trigonous, forming a segment of a sphere, convex 



T 2 



