CHAtlA. 455) 



2. C. syncar'pa (Thuil.) ; dioecious, st. slender equal flexible 

 transparent, hranchlets humtish apiculate nearly equally forlie.d 

 or trifid, nucules or globules at the forks of the branohlets with- 

 out bracts. — Slender, diaphanous, resembling C.Jlexilis. Nu- 

 cules with 5 striae and scarcely any crown. — Wants reexamin- 

 ation. A. Braun now (Charce Hm-op.) says that E. B. 1070 is 

 V. opaca and "Wilson's Cwm-Idwell plant is C. capitata. Oha- 

 boisseau (^Bull. Bot. Ft: xviii. 148) says that C. opaca has naked 

 nucules but C. ayncarpa and C capitata have a mucilaginous 

 coat to them. — Stagnant water. A. V. E. S. I. 



'* Branchlets itsually 7-epeatedly divided, terminal segments vf 2 

 joints, last joint usually like a mucro. Branchlets 6 — 8 in a 

 whorl, similar. 



3. C. transliicens (Pers.) ; monoecious, at. thick equal flexible 

 transparent, sterile hranchlets simple not jointed, upper ones endiii;/ 

 in 2 or 3 short points, fertile whorls of small trifld branchlets 

 very small and closely placed, nucules small oblong usually in 

 threes just below the prongs of the branchlets which surround 

 the terminal globule.— X B. 1855. Atl. Fl. Par. 40 B.— Strong. 

 Fertile whorls appearing capitate. Globules solitary. Nucules 

 with 7 strise. — Deep stagnant pools. A. Vll. E. S. I. 



4. C. mucronata (A. Br.) ; monoecious, st. slender, equal flex- 

 ible transparent, branchlets strongly mucronate nearly-*equally 

 forked or trifid, nucides and globules together at the forks of the 

 branchlets without bracts. — Atl. Fl. Par. 40 D. — Rather th^ck. 

 Secondary branchlets once or twice forked, terminal subdivisions 

 rather shorter than the others. " Nucules with 4 or 5 striae..';^ — 

 Marsh-ditch, W. Grinstead, Suss. Mr. Borrer. A. Vll. "E. 



5. C. grac'ilis (Sm.) ; monoecious, st. slender equal flexible 

 transparent, branchlets in lax lohorls repeatedly divided into 3 

 or 4 segments, terminal segments mucronate shorter than the 

 others, globules and nucules each solitary but together at the 

 subdivisions of the branchlets without bracts. — E. B. 2140. -R. /. 

 793. Atl. Fl. Par. 41 E. — Small, slender, branching in a lii.r 

 open manner. Nucules subglobose, with 4 or 5 strise, large in 

 proportion to the plant. — St. Leonard's Forest, Suss. Mr. Borrer. 

 A. IX. E. 



6. C. tenuis'stma (Desv.) ; monoecious, st. slender equal flex- 

 ible transparent, branchlets short in detise compact subglobose 

 lohorls repeatedly divided into 3 — 7 segments, terminal segments 

 mucronate longer than the others, globules and nucules each 

 solitary but together at the subdivisions of the branchlets with- 

 out bracts.— iJ. /. 792. Atl. Fl. Par. 41 E.— Very small and 

 slender. Branchlets very much divided, forming little globose 

 compact masses which are often much incrusted. Nucules sub- 



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