﻿LENTIBULARIfi/E (Stapf). 423 



Okdek XCVII. LENTIBULARIEiE. 



(By 0. Staff.) 



Floivers lierm aphrodite, zygomorphic. Oalyx inferior, deeply 2-5- 

 partite, regular or more or less 2-lipped, or the sepals free to the base. 

 Corolla gamopetalousj 2-lipped, spurred, rarely saccate; tube very 

 short ; upper lip interior, entire to 2-lobed, lower entire or 2-3- 

 lobed, usually with a vaulted, more or less 2-gibbous palate. 

 Stamens 2, anticous, attached to the base of the corolla, slightly 

 converging in front of the stigma ; filaments short, usually curved 

 and asym°metrically thickened ; anthers 2-celled ; cells diverging, 

 confluent, dehiscing by a common slit. Ovary superior, 1 -celled ; 

 carpels 2, median ; style simple, short or very short ; stigma more or 

 less distinctly 2-lipped, upper lip usually very small or obscure ; 

 placenta free-central, ovoid or globose, rarely reduced 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 circumscissilc, very 

 rarely 1-seeded and indehiscent. Seeds very sma 1, variously shaped ; 

 testa thin or spongy or corky, rarely exuding mucilage; endosperm 0; 

 embryo undififereutiated or with obscure protuberances (rudiments ot 

 the primary leaves) at the often flat or slightly concave apex 

 rarely with a plumule of subulate primary leaves or a distinct 

 cotyledon. 



Perennial rirelv annual herbs, aquatic or terrestrial (but always in wet places), 

 wit^'^c^^r utu'^^^^^ utricular' cltrivances for the capture and d-geshou ot 

 smill nvo-anisms- leaves rosulate or scattered on stolons entire or diviaca, 

 unltm rr^etiieT"eteron.orphic ; inflorescences t-jna^or ax. ary^^^^^^ 

 duncled, racemose, simple, rarely fP'^"»S>y '^ranched bractcatebv.t ^^^^^^^^^^^ 

 usually barren, adpressed ; bracteoles 2 or at the base of the pedicels, Uoweis 

 very small to large, often showy, yellow, purple or blue. 



D.STHiB. Species about 200 in all parts of the world, excepting and 

 regions. . , , , 



T TItricularia -CaUx of 2 sepals ; utricles bladdcr-liko, ovou or globos.-. 

 IL QSea-Ca?;. deeply 5.partite, utricles tubular wah 2 spirally- 

 twisted arms. 



I. UTRICULARIA, Linn. 



Semis 2 free or united at the base, persistent, and frequently 

 ^epcas ., "^^/^^ , slirrhtly unequal. Corolla 2.1ipped, 



enlarged m fruit, ^^^^^^^ .'^^'^'^fi -p^ erect, entire or emarginate to 

 sparred or rarely ^^^f^^^'jC^^r than the upper, usually with a 

 bifid; lower l^P ^^^^^^^^^ ^^^^^^^^^^ spreading or 



vaulted, often much raised ^^'^--SJ^^'^^; ?f stamens 2 ; Blaments 

 deflexed entire. ^^^^^^^^^V^^^f ^fteif ^yrnmetrically thickened; 

 almost straight or «",7^'Stinct or quite confluent; pollen 

 anthers dorsi6xed, cells «^bd^f "f ^^^^^^ few to many longitu- 

 globose or depressed-globose witH or witnout j 



