XCIV. LENTIBULARIE& (STAPF), 469 
to a short basal protuberance; ovules numerous, sessile and closely 
packed, rarely few or only 2, anatropous. Fruit a 1-celled, few- to 
many-seeded capsule, dehiscing irregularly or by 2-4 valves or circum- 
scissile, very rarely 1-seeded and indehiscent. Seeds very small, variously 
shaped; testa thin or spongy or corky, rarely exuding mucilage ; 
endosperm 0; embryo undifferentiated or with obscure protuberances 
(rudiments of the primary leaves) at the often flat or slightly concave 
apex, rarely with a plumule of subulate primary leaves or a distinct 
cotyledon.—Perennial, rarely annual herbs, aquatic or terrestrial (but 
always in wet places), with peculiar, usually utricular, contrivances for 
the capture and digestion of small organisms. Leaves rosulate or scat- 
tered on stclons, entire or divided, uniform or sometimes heteromorphic. 
Inflorescences terminal or axillary, peduncled, racemose, simple, rarely 
Sparingly branched, bracteate ; lowest bracts usually barren, adpressed ; 
bracteoles 2 or 0 at the base of the pedicels; flowers very small to large, 
often showy, yellow, purple or blue. 
Species about 200, in all parts of the world, excepting arid regions. 
Calyx of 2 sepals; utricles bladder-like, ovoid or 
< 
1. UTRICULARIA. 
globose Se : é d s : c 
Calyx deeply 5-partite ; utricles tubular with 2 spirally- 
twisted arms : s 3 5 . 2. GENLISEA, 
1. UTRICULARIA, Linn.; Benth. et Hook. f. Gen. PI. ii. 987. 
Sepals 2, free or united at the base, persistent and frequently 
enlarged in fruit, equal or slightly unequal. Corolla 2-lipped, spurred 
or rarely saccate ; upper lip erect, entire or emarginate to bifid; lower 
lip usually much larger than the upper, usually with a vaulted, often 
much raised and 2-gibbous palate and a spreading or deflexed entire, 
crenulate or lobed margin. Stamens 2; tilaments almost straight or 
curved, short, often winged on the outer side; anthers dorsifixed, cells 
subdistinct or quite confluent; pollen globose or depressed-globose, with 
or without few to many longitudinal slits and several pores. Ovary 
more or less globose, 1-celled ; style indistinct or distinct, but short, 
persistent ; stigma 2-lipped, anticous lobe much larger than the often 
obscure posticous; ovules numerous, rarely few, sessile on the free 
central fleshy placenta, anatropous. Capsule usually globose, breaking 
up into 2 valves or dehiscing irregularly. Seeds globose, ovoid, lenticular, 
hemi-elliptic, truncate-pyramidal or prismatic, smooth, reticulate, 
tubercled, glochidiate or variously winged, usually very small, ex- 
albuminous. Embryo undifferentiated, with or without obscure pro- 
tuberances (the beginnings of the primary leaves), rarely witha plumule 
of 9-12 more or less subulate primary leaves.—Rootless, aquatic or 
terrestrial or epiphytic herbs, nearly always provided with minute 
bladder-like organs for the capture and digestion of small organisms ; 
annual or perennial with or without a resting season ; the aquatic 
species reproducing themselves frequently frem special resting buds 
