228 



LENTIBULARIACEAE. 



VOL. III. 



3. Utricularia fibrosa Walt. Fibrous Blad- 

 derwort. Fig. 3863. 



Utricularia fibrosa Walt. Fl. Car. 64. 1788. 



U. striata LeConte; Torr. Cat. PI. N. Y. 89. 1819. 



Stems creeping on the bottom in shallow water, 

 radiating from the base of the scape. Leaves 

 alternate, trichotomous at base, the rays di- or 

 trichotomously divided, the segments capillary, 

 fewer and more or less root-like when bladder- 

 bearing. Scapes solitary or 2 together, 4'-i6' 

 high, 2-6-flowered, with I or 2 scales or none ; 

 pedicels 2i"-6" long, one-half longer in fruit, 

 ascending; calyx-lobes i"-ii" long, a little longer 

 in fruit; corolla yellow, the upper lip broadly 

 triangular, faintly 3-lobed, 3i"-s" long, 6"-7" 

 broad, radiately striate, the lower slightly 3-lobed, 

 3i"-5" long and broad, the palate prominent, 

 2-lobed ; spur conic at base, slender above, obtuse 

 or emarginate, appressed to and equalling or ex- 

 ceeding the lower lip ; capsules 2"-2i" in diameter. 



In shallow water, Long Island to Florida and Mis- 

 sissippi, near the coast. June-Aug. 



4. Utricularia intermedia Hayne. Flat- 

 leaved Bladderwort. Fig. 3864. 



U. intermedia Hayne, in Schrad. Journ. Bot. iSoo 1 : 



18. 1801. 



Stems creeping on the bottom in shallow water, 

 radiating from the base of the scape. Leaves 

 alternate, those on some branches or portions of 

 branches 2&"-j" long, trichotomous at base, the 

 rays di- or trichotomously divided, with linear, 

 flat, bristly-serrulate segments, and without blad- 

 ders, those on other branches or portions of 

 branches shorter and root-like, with fewer capil- 

 lary segments and a few large bladders up to 

 2*" long; scapes solitary, 2'-8' high, i-4-flowered, 

 with i or several auriculate scales ; pedicels 4"-io" 

 long, erect-ascending; calyx-lobes i"-ii" long, a 

 little larger in fruit; corolla yellow, the upper 

 lip broadly triangular, 2i"-3" long, $'-4" broad, 

 the lower slightly 3-lobed, 5" -6" long and broad, 

 the palate prominent ; spur conic at base, cylindric 

 above, acute, about I as long as the lower lip; 

 capsules li" in diameter. 



In shallow water, Newfoundland to British Co- 

 lumbia, south to New Jersey, Indiana and California. 

 Also in Europe. May-Aug. Commonly propagated 

 by the velvety winter-buds. 



5. Utricularia minor L. Lesser Bladder- 

 wort. Fig. 3865. 



Utricularia minor L. Sp. PI. 18. 1753- 



Stems creeping on the bottom in shallow water, 

 4'-i2 r long, sparingly branched. Leaves alter- 

 nate, with few divisions, usually only \"-\\" 

 long, and bearing 1-5 bladders each ; larger blad- 

 derless leaves, i"-3" long, with flat segments, 

 sometimes occurring on special branches or seg- 

 ments of the main stem; scapes solitary, filiform, 

 2'-6' high, 3-6-flowered, with 2-5 minute auricu- 

 late scales ; pedicels capillary, i"-4" long, re- 

 curved in fruit ; calyx-lobes about 2" long ; co- 

 rolla pale yellow, the upper lip minute, i"-2" 

 long and half as wide, the lower 2"-4" long, the 

 palate nearly obsolete ; spur very short and sac- 

 cate ; capsules about \" in diameter. 



In shallow water, circumpolar, southward in 

 America to Connecticut, New York, Pennsylvania, 

 Ohio, Indiana, Colorado and California. June- 

 July. Often propagated by winter-buds. 



