372 
74. CALLITRICHACE^. 
2. C obtman'gula (Le Gall) ; f r. nearly sessile, lobes parallel 
with rounded edges, styles erect or spreading persistent, bracts 
persistent. — L. all obovate, in a rosette. Fr. large, quite blunt 
and rounded at the edges. — Ditches. A. or P. V. — IX. E. I. 
3. C. polymorpha (Lonnr.) ; fr. nearly sessile, its lobes keeled 
not ivinyed ; styles erect in fl. persistent and reflexed in fr. ?;en/ 
long, bracts falcate persistent. Upper 1. rosulate, roundly 
spathulate, lower 1. linear emarginate. Fr. about as long as in 
Sp. 1. Style 2 — 3 times as long as fr. Much resembles Sp. 4 
but fr.smaller and scarcely ^vinged. — Recorded from Surrey and 
Shetland. A. or P. VI.— IX. E. S. 
4. V. stag'nalis (Scop. sec. Kiitz.) ; fr. nearly sessile, lobes 
ivinged on the back, styles erect in flower persistent and reflexed 
closely with fruit, bracts falcate persistent. — E. B. S. 2864. All 
1. round-obovate-spathulate, floating-1. in a close rosette, often 
wanting. Fr. twice as large as in Sp. 1, pale when dry ; lobes 
slightly spreading. — Common, especially on mud. A. or P. 
v.— IX. E. S. I. 
5. C. hamuldta (Kiitz. ex Koch) ; f r. broader than long nearly 
sessile or stalked, lobes parallel icith a blunt dorsal ridge flat on 
the sides, styles divaricate and reflexed over the sides of the 
fruit, bracts falcate very deciduous. — E. v. 130. Sy. E. B. 
1273. L. linear; upper ones broader in the middle; upper- 
most oblong spathulate. Bracts hooked, overlapping, .soon 
falling. Fr. small, the size of that of C. palustris. — /3. C. 
pedunculata (DC.) ; 1. linear, upper 1. rather broader, f r. stalked. 
Plant usually very small. — Lakes and streams. /3. j\Iarshes. 
A. or P. IV.— IX. E. S. I. 
B. L. uniform, enlarged at the base, linear. Fr. of 4 
nearly free lobes. 
6. C. truncdta (Guss.) ; fr. shortly stalked, lobes with a blunt 
dorsal r-idge, styles reflexed-patent, bracts 0. — C. autumnalis 
Hook, (not L.). E. B. S. 2606. — L. all submersed, uniform, 
very abrupt at the end, translucent green. — Suss., Kent, Wex- 
ford, Guernsey. A. or P. IV. — IX. E. I. 
7. C. aiitumndlis ([" L."] Wahl.) ; fr. nearly sessile, lobes 
broadly and acutely winged at the back, styles spreading, bracts 
0. — E. B. S. 2732. — Fr. 4 times as large as in C. palustris, dark 
brown, 1 or 2 of the lobes often abortive. L. dark green, all 
submersed, very abrupt at the end. — Rare. Anglesea. N. of 
England. Scotland. N. & W. of Ireland. A. or P. VI.— IX. 
E. S. I. 
