The English flora - SeaweedAfrica

AliGM. 259
arise fascicles of minute simple or dichotom^ns, tnoniliform, arti-
culated threads ; the articulations elliptical, being themselves the
seeds or sporidia, separating in age and geminating. Ag.
55. Lemania. Frond filiform, torulose or inflated at inter-
vals, coriaceous, cellular. Seeds or spomdes beaded, collected
into pencil-shaped tufts, and fixed to the inner surface of the
hollowed part of the frond.
Div. II. CONFERVOIDE^. 1
Plants filamentous, really or apparently articulated (destitute of
definite gelatine).
Tribe XIV. Ectocarpe^:. Plants olieaceous or rirescent,
marine. Fructification moncecious; external capsules, and globules
in swollen ramuli.
56. Cladostephus. Famuli whorled.
57. Sphacelaria. Rigid, mostly pinnate, longitudinally
striated, the apices sphacelated.
58. Ectocarpus. Capillary, flaccid, the apices attenuated,
acute.
Tribe XV. Ceramie;e. Plants red or purple, rarely brown ,
marine. Fructification double, dioecious ;— 1 . external capsules
;— 2. polymorphous receptacles or granules in swollen
ramuli.
59. Polysiphoxia. Longitudinally striated, with internal
parallel tubes. Fructification ;— 1. ovate capsules;—2. granules
in swollen ramuli.
60. Dasya. Stems inarticulate, cellulose, the ramuli articu-
lated. Fructification ;— 1. ovate capsules;— 2. lanceolate recep-
tacles, including granules in transverse fasciae.
61. Ceramium. Filaments reticulated, dissepiments opaque.
Fructification;— I. roundish capsules with a membranaceous
pericarp;— 2. oblong granules in the upper ramuli.
62. Spyridia. Main filaments inarticulate, cartilaginous, bet
set with articulated ramuli ; dissepiments opaque. Fructification;—
L trisporous capsules with hyaline pericarps clustered
round the btset of the ramuli :— 2. pedunculated 'jelatinoi;-
ceptacles \\ itli membranaceous periearps, often surrounded l»\ an
involucre of short ramuli, containing two or tine masses of
roundish granules.
83. (ini 1
1
1 1 ii-i \. Filament* mostly dichotomous, dissepi-
ments hyaline. Fructification; — 1. clustered capsules and
» By W. II. II.hv.v. Baq.