Utricularia. ] LENTIBULARIACEM. 105 



opening by 2*4 vahrei or oiroamtoiMile ov bursting irregularly. 

 s [4 niinute, without albumen. — Species about 200, found iu all 

 parts of the world, except in arid regions. 



UTRICULARIA, Linn. ; Fl. Brit. Ind. iv, 328. 



Herbs floating and rootless, or on wet ground and rocks, often 

 furnished with minute bladder-like iiuect-traps. Leaves regulate, 

 or when submerged many-partite with capillary segments. Flowers 

 on simple or branched scapes ; racemes few or many-flowered, pedicels 

 bracteate and often 2-bracteolate. Calyx 2-pirtite ; lobes entire or 

 nearly so, ofVn enlarged in fruit. Corolla 2-lipped ; upper lip entire 

 or emarginate ; lower larger, 3-6-lobed ; tube with a straight or 

 curved Bpur. For characters of stamens, ovary, fruit and seeds see 

 the family. — Species over 100, in the tropica! aud temperate regions 

 of both hemispheres. 



Inflorescence held up above water by a whorl 

 off. a the peduncle . . . . 1. U. stellai 



Infl n-escence without fljats on the peduncle : — 

 Peduncle-; stout ; pedicels reflexed in 

 fruit, bearing usually more than 3 

 flowers; seeds not or scarcely winge 1 . 2. U. flexuosa. 



Peduncles slender, pedicels erect in fruit, 

 bearing 1-3 flowers; seeds distinctly 

 winged . . . . . . 3. U. exoleta. 



1. U. stellaris. Linn. f. 8uppl.$6 ; Boa b. ;7. Ind. i, 143 ; F. B. I. iv, 328 ; 

 Prain 601(9. PL 780 ; Coo'ce FL Bomb, ii, 316. 



An : • herb. Stolons and leaves fljatiug under the surface of the 



water. Stolons long and usually rather slender, sparingly blanched. Leaves 

 $-l£ in. long, often in whorls of four, pinnately divided into capillary 

 scgin •]: primary segment furnished near the base with a small 



roundish bladder, the mouth of which is truncate. Racemes erect, 

 Blender, few-12-flowered, rising above the surface of the water ; peduncles 

 1-8 in. Long nded by a whorl of spongy floats attached about \ 



in. below the lowest fl >wer, each float tipped with a tuft of filiform 

 pinnse ; bracts .-mall, ovate, obtuse, braoteolea none ; pedicel- t ) ri \ i n , 

 long, thickened, usually deflexed in fruit. Cal\ in. long; segments 



nearly <<iual, suborbicular. enlarged in fruit. Corolla yellow, ^ in. in 

 acr<>-- ; upper lip rounded, Lower subquadrate ; -pur a Little Bhorter tliaa 

 the Lower lip, stout, blunt] Bomewhat curvea. Consul* globose. $ in. 

 in diam. Seeds minute, discoid., angled; margin slightly winged, inflexed, 

 entire. 



