NITELLA. 
539 
their terminal segments 2- or Z-cdled strongly mucronate, 
nucules and globules e^ch solitary but together at the forkings 
of the branchlets.— B. 2140. AH. Fl. Par. 41.— Very small 
and slender. Nucules subglobose with 6 or 7 spires. — St. 
Leonard's Forest, Suss. Salop. Glen Cullen, Co. Dublin. 
Wicklow. A. IX. E. I. 
7. X. tenuis'sivia (Kiitz.) ;. st. equal liesible transparent, 
brancklets r« veri/dense compact subg/obose vhorh twice or thrice 
equally forked in 3 — 6 segments of 2 or 3 cells their terminal 
cell very slender and acute, nucules and globules each solitary 
but together at the forkings of the branchlets. — Atl. Fl. Par. 
41. — Very small and slender with long internodes, 1 — 4 [ — 12] 
in. high, usually dark green. Branchlets forming little globose 
compact masses, often much incrusted. Nucules globose with 
9 spires, minute but much exceeding the diameter of the 
branchlets ; globules much larger. — Peaty ditches in Fens of 
Cambridgeshire, Norfolk, and Anglesea. Westmeath. Gal- 
way. A. VIII. E. I. 
S. -Y. batrochoipermc. (Brann); st. very slender eqnal flexible transpareiit, 
branchlets 8 in loose subglobose whorls, twice or rarely 3 times forked in S— i 
segments, ultimate segm. very acute, globules and nucules each solitary but 
together at the first forking 0/ (7i< branchlets with 7 spires, nucules ovate with 
prominent spires, surface m'nutely ond irregularly u-arty. — .Y. confervticta 
(Braun) ; J. of B. xxviii. (1S90) p. 65, t. 296. ,Y. Sordstedtiana (H. & J. G.) — 
Very small. Branchlets less compound and not so slender as in sp. 7, and the 
internodes shorter. Obbe, I. of Harris. Killamey and Caragh Lakes. VII.VIll. 
S. I. 
9. X hyalina (Ag.); st. flexible transparent, whorls loose subglobose of 8 
primary and iibi^t double as many smaller secondary branchlets, primary 2 — 3 
times forked with 7—10 rays at the firs*' forking, secondary 1 — 2ee divided 
or a few simple, nucules ovoid showing 9—10 spires —J. of S. xxxri. (1S98) 
p. 409, t 392.— About 6 — IS in. high, dark green. At once distinguished from 
all the other sp. by the presence of secondary branchlets.— The Loe, West 
Cornwall. Rev. G. R. BtUlock Webster. VIII. E. 
** Globvles lateral on the fcrrkings of the branchlets, amongst the 
nvcules. Segments unegtial. Monoecious. — Tolypella Leonh. 
10. N. glomerdta (Chevall.) : st. stoutish, sterile branchlets 
6 — 12 simple blunt 3 — 5-jointed, fertile branchlets many densely 
crowded once unequally 3— 4-forked with blunt 2 — 5-jointed 
divisions, globules usually stalked with one or more nucules of 
8 or 9 faint spires.— Fl. Par. 41.— Much incrusted and 
brittle. — Brackish ponds and ditches chiefly. A. IV. E. I. 
