The English flora - SeaweedAfrica

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'286 ALGJE INART1CULAT/E. [NitophyUitm.
Alg. v. I. p. 178. Grev. Alg. Brit, p. 73. Fucus alatus, Huds.—
Turn. Syn. Fuc.p. 144. t. 160. (3. angustissima ; frond extremely
narrow without any trace of lateral membrane. Turn.
Hist.Fuc. t. 160.
Upon rocks in the sea and larger Algae, frequent.— j3. Scarborough,
Mr. Pitchford and Lozie-mouth, Morayshire, Mr. Brodie. $ .?— 4— 6 inches
long, of a deep rose-colour, with a strong midrib.
4. D. Hypoglossum, Ag. (proliferous Delesseria) ; frond lin-
ear-lanceolate repeatedly proliferous from the midrib with leaves
of the same shape and attenuated and acute, with very obscure
pellucid simple oblique veins between the midrib and the margin,
sphaerical capsules on the midrib of the lesser leaves and
oblong spots of seeds near their extremities Ag. Sp. Alg. v. 1.
176. Fucus Hypoglossum, Woodw.-— Turn. Syn. Fuc.p. 17,
p m
Hist. Fuc. t. 14. E. Bot. t. 1396.
On rocks in the sea and on the larger Algae. © . Fructification, Summer.—
2—4 inches to a span long, varying much in the width of the
leaflets.
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5. D. ruscifolia, Lamour. (Ruscus-leaved Delesseria) ; frond
linear-oblong proliferous from the midrib with leaves of the
same shape and very obtuse with pellucid branched bearded oblique
veins between the midrib and the margin, spheerical cap-
sules on the midrib of the lesser leaves and oblong spots of seeds
near their extremities. Ag. Sp. Alg. v. 1. p. 174. Grev. Alg.
Brit. p. 76. Fucus ruscifolius, Turn, in Linn. Trans, v. 6.
p. 127. t. 8./. 1, Syn. Fuc.p. 12, Hist. Fuc. t. 15. E. Bot.
t. 1395.
Sea, on rocks and upon Algae, scarce. Norfolk and Suffolk, Devonshire
and Bognor. Bantry, Miss Hutchins. Miltown Malbay, Ireland,
Mr. Harvey. ©. Summer.— Plant smaller, the leaves being much
shorter than in the preceding species and very obtuse, but quite as
broad. The different texture of the frond, arising from the peculiar,
oblique, pellucid veins, will afford a further character by which the two
may be distinguished.
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25. Nitophyllum. Grev. Nitophyllum.
Frond plane, delicately membranaceous, rose-coloured, reticulated,
wholly without veins, or with very slight vague ones towards
the base. Fructification ; kemisphserical capsules imbedded in
the substance of the frond, and ternate granules forming distinct
scattered spots Named from the Latin nitor, to shine, and the
Greek (pvXXov, a leaf; from the glossy surface of the fronds.
This Genus appears to be a natural one; but 1 find the species
so difficult to distinguish in tke dried state, tkat I kave relied
upon Dr. Greville for most of tke characters. Beautiful
specimens of nearly tke whole of them I have received through
the well known liberality of Mrs. Griffiths.
1. N. ocelldtum, Grev. (ocellated Nitophyllum); frond with a
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