103. CHARACE^. 
537 
3. Selaginel LA Beauv. em. Spring. 
1. S. se/agiiio'ides (Link) ; 1. uniform scattered lanceolate 
ciliate, spikes terminal solitary sessile leafy upon short erect 
branches. — 5'. spimdo'sa (A. Br.), E. B. 1148. X. 371. — 
iSt. prostrate, much branched, rooting, slender. Flowering 
branches simple, short, erect. Small spores muricate in 
2-valved reniform caps. ; large spores papillose in 3 — 4-valved 
capsules. — Bogg%' spots chiefly in mountainous districts. 
P. VIII. ' ■ E.S.I. 
B. Stems of one or more parallel tubes, verticillately branched. 
Nucules and globules on the branchlets. 
Order CIII. CHARACE.E. 
Leafless branched plants with stems formed of one or more 
parallel tubes. Two kinds of fructification ; round red 
globules [antheridia] formed of 8 valves, enclosing cells 
containing granular matter and spiral filaments ; oval nucules 
[oogonia] formed of 1 cell with 5 filaments folded spirally 
round it and containing minute granules which appear at last 
to uniteinto a single seed. — Plants aquatic. The position of 
this order is very doubtful.' 
1. XiTELLA. Globules and nucules at the forking of the 
branchlets. Crown of nucule of 10 cells in 2 rows lying 
upon each other, the upper smaller, usually deciduous. — 
No stipulodes. Stem of one tube. 
2. Chaea. Globule taking the place of central bract, 
below the nucule [except sp. 2]. Crown cf nucule of 5 equal 
cells in one row, persistent. — Stipulodes in 1 or 2 whorls. 
Usually with cortical cells. 
1. Nitel'la Agardh. 
* Globules terminal in the forking of the branchlets. Nucules 
below the globides. Segments nearly equal. — Nitella Braun. 
t Branchlets only once divided into l-(5elled segments. 
1. X. Jle,v'ilis (Ag.) : monoscious, st. slender flexible trans- 
parent, branchlets pointed not mucronate, fertile whorls usually 
1 See Messrs Groves valuable paper in the -/. of B. xviii. and lii., where are 
figures of nearly all the species. 
