Utricularia. | XCIY. LENTIBULARIEH (STAPF). 495 
quite different from that of Biovularia, an American genus. The corolla is rather 
peculiar on account of the very short and wide sac-like spur and the widely gaping 
mouth, but the upper and lower lips are quite distinct, the latter being so constricted 
at the base as to be almost cordate. 
32. U. obtusa, Swartz, Nov. Gen. et Sp. Pl. 14. An aquatic herb, 
floating or creeping on liquid mud, sometimes matted into extensive 
felt-like masses. Stolons long, branched, finely filiform, flat, green, 
glabrous, frequently with arrested buds in the leaf-axils from the bases 
of which spring small whorls of leaves and stolons. Leaves all alike, 
about 2-3 lin. apart, forked from the base or near it, 25—5 lin. long ; 
partitions usually forked again above the middle, or entire; ultimate 
segments capiliary, smooth, flexuous. Bladders usually in the place of 
1 or 2 of the ultimate leaf-segments and also near the tips of the 
stolons, obliquely ovoid, up to } lin. long, mouth sublateral, oblique, 
oblong, fimbriate, fimbriz unequal, longest branched, insertion of stalk 
lateral. Scapes lateral, filiform, erect, 2-4 in. long, 4—1-flowered, with 
or without 1 or 2 minute scales. Flowers distant if more than 2; 
bracts rotundate-oblong, 4-3} lin. long; bracteoles 0; pedicels filiform, 
permanently straight, obliquely erect, at length up to 5 lin. long. Sepals 
equal, rotundate-ovate, 1 lin. long, green, enlarged in fruit, orbicular and 
over 1} lin. in diam. Corolla yellow, 3-5 lin. long; upper lip broad - 
ovate, obtuse, entire, 2} lin. long; lower lip rotundate, 24 lin. long, with 
a large raised 2-gibbous palate; spur conic, rather slender, obtuse or 
subacute, about 3 lin. long. Anthers 2 lin. long. Ovary subglobose ; 
style very short; upper stigmatic lip obscure; lower suborbicular. 
Capsule globose, 1} lin. in diam. ; seeds elliptic-orbicular, lenticular, 
up to almost 4 lin. in diam., with an opaque corky wing all round. 
Embryo lenticular, up to } lin. long.—Swartz, Fl. Ind. Occ. i. 41 
(obtusata); DC. Prodr. viii. 10; Benjam. in Mart. Fl. Bras. x. 239; 
Kam. in Engl. Jahrb. xxxiii. 113. U. tricrenata, Baker ex Hiern in 
Cat. Afr. Pl. Welw. i. 785. JU. sp. nov.? aff. U. gibbe, Oliver in 
Journ. Linn. Soe. ix. 147. 
Lower Guinea. Angola: Huilla; muddy shore of Lake Ivantala, 4000 ft., 
Welwitsch, 270! backwaters at the junction of the Chitanda and Cunene Rivers, 
3660 ft., Baum, 123! 
Also throughout Tropical America. Kamienski indicates this species also from 
Stanley Pool (Duchesne). 
33. U. exoleta, 2. Br. Prodr. 430. An aquatic herb, floating in 
water or creeping on liquid mud. Stolons of varying length, much 
branched ; branches often fascicled, from a few inches to almost 1 foot 
long, very slender, flat, green and leafy or bleached and almost naked. 
ves varying considerably in the degree of development, rarely more 
than 2 lin. long, very sparingly dissected, usually one or several of the 
segments represented by bladders, or the whole leaf replaced by a bladder, 
normal segments delicately capillary, glabrous. Bladders obliquely 
globose-ovoid, rarely more than } lin. long, mouth subapical, truncate 
with delicate branched cilia. Raceme 3-2-flowered or reduced to a 
Single flower; peduncle slender, filiform, straight or flexuous, 2-3 in. 
