The English flora - SeaweedAfrica

Sphceioearpus.} I IK PAT KM',. 99
cording to Mr. Wilson occasioned by scales on the lower part of the
frond, but no peculiar organization exists to justify a belief in real fruit.
When growing in ponds and ditches, this plant is large and quite destitute
of fibrous radicles :.but if thrown on the soil at the margins, it
becomes smaller, with shorter segments, and fastens itself firmly to the
ground by numerous fibrous root-,.
3. R. nutans, Linn, {broadfloating Riccia); frond obovate or
inversely cordate once or twice lobed, clothed beneath and at
the margin with numerous long pendent reticulated flat fimbriae.
Linn. Syst. Nat. ed. 1 2. v. 2.p, 708. E. Bot. t. 2!j&. Muse. Brit.
"I. 2. p.214. Lindenb. Syn. Uepat.p. 121.
—
li. cctpillata, Schm.
Ic, t . 1\.—Dill. Muse. t.78.f. 18.
Stagnant pools, England; but not general. Fr. . Fronds always
floating, half an inch long, between fleshy and membranaceous, palegreen
above, slightly grooved In the centre, cells large, each cell consisting
of smaller cellules, margin and underside clothed with numerous
pendent, linear, membranaceous, dark purple, strongly veined fimbria.'.
Fruit unknown in Britain ; but appearing, from specimens communicated
by Professor Torrevj New York, exactly like that of li. crystallina.
Professor Henslow has sent me numerous specimens from near Cam-
bridge.
4. R. spuria, Dicks, {spurious Riccia); " fronds membranaceous
lobed pellucid, fructification beneath the sinuses of the
lobes solitary exserted turbinate toothed." Dicks. Or. Fasc. 4.
p. 20. t. 11./. 1G. Hook. Fl. Smt. P. II. p. 110. Muse. Brit.
til. 2. p. 214. Lindenb. Syn. Hepatp. 119.
'
Turfy marshes among the Scottish mountains. Mr. D ..
. — Of this plant I know nothing, except from Dickson's figure ami
description above quoted, which seem to accord but ill with Riccia.
2. Sphjsrocarpus. Mich. Sphaeroearpus.
CapsulesC? )sphserical, surrounded by anobovatejoeriia«M,open
at the Buramit. {Muse, lint ed.2,p.2\5.)— Named from n:
& globe, wad xxpros, fruit, in allusion to the form of the supposed
capsules.
I. S. i, rii si ris. 8m. {ground Sphaeroearpus). /'. Bot t. 299.
Muse. 1 Ini. i J. 2. />. l'1.">. Lindenb. Syn. Hepat p. III.
Targionia spfuerocarpa, Dicks. Cr. Fasc. I.y. 8. Schm, /