CHARA. 
543 
or straight, slipulodas jn ominent, bracts whorled nearly equal 
exceeding the ovoid nucules of 13 spires and spreading crotrn. 
E. B. S. 2738. — Small, in dense masses. Sometimes with 
smooth bulbils on lower nodes. Length and number of spines 
variable. Internodes very long. — [-i- cavHiata (Braan); epine-ceiis 
'.any tbtv long, plant usually bright clear greeu. — suhinermis (Kuetz.); spine- 
-Us very few and inconspicuous, much shorter than in the type. — 5. laeustris 
,H. & J. G.); much smaller 1 — 1 in. high, branchl. short stout incurved, spine- 
CBlla papillate. — Subsp. dtsmacantha (H. i J. G.); st. usuu ly thicker, corte:; 
imperfectly 3-ranked, spine-cells fascicled instead of solitary.] — Lates and 
pools. VII. YIII. E.S.I. 
11. C. counivens (Braun) : dioecious, st. slender brittle with- 
out spines, branchlets usually S strongly incurved, sHpidodes 
scarce! >/ visible, bracts much falling short of nucules scarcely 
apparent except with them, nucules small ovoid with 12 — 14 
spires and conical croirn. — ,/. of B. xviii. t. 207. — Light green. 
12 inches high. — Hare. In south [and ea.st] of England. 
[weiford.] vn. Tin. E.I. 
12. C. frag His (Desv.; : monixeious, st. slender finely striate 
no spines, branchlets 6 — 9 of 7 — 9 joints the upper 1 — 3 joints 
not coated, lower stipulodes very short, bracts usually 4 usually 
about equalling the ovoid nucules of 12 — 14 spires and rather 
ronical crown. — C. jndchella E. B. S. 2824. — Slender, green, 
usually not incrusted. Verj* variable, [a. Primary cortical ceii> 
not more prommei.t than the secoBdary.] — i. Hedu'igil (Ag.) : Stronger 
and larger with very short bi-acts. E. B. S. 2762.-7. fulcrata 
(Gant.) ; bracts shorter than the nucides, stip. obsolete. — 
[5. capillaua (Thuill.); whole plant very slender, branchlets spreading. — 
e. Sturrockii (H. 4 J. G.) ; cortication irregular, branchlets ecorticate. Possibly 
a hybrid. — B. Sabsp. dtlicatula (Braun) ; primary cortical cells more prominent 
than the secondary, j'. small, branchlets usually coaniTect. — y). harhaza 
(Gant.); bracts and stipulodes much longer.] — D. C. verrucosa (ItZ.) ; 
small, 2 — 4 in. high [with conical spine-ceiis], often with compound 
bulbils at base. — Slow and stagnant waters, [f. Mock My re, t. 
Perth. Mt A. Sturrock.^ VI. — VIII. E.S.I. 
13. Cf ragifera (Dur.) ; dioecious, st. very finely striate no 
spines, branchlets slender 6 — 9 of many joints upper joints not 
coated, stipulodesverysmall, bracts3 — 5half as long as nucule 
very short with globule, nucules ovoid of 11 — 13 spires and 
short hlunt croirn. — ,/. of B. xv. t. 192. — Often, flexible and 
exceedingly slender, 6 — 12 inches long, bright green, not 
incrusted. bearing large comijound bulbils at its base. — West 
of Cornwall in pools. VII. VIII. E. 
