Ser. RHODOSPERME2. Fam. Spherococeoidea. 
Prats CLVII. 
STENOGRAMME INTERRUPTA, Mont. 
Gen. Cuar. Frond rose-red, leaf-like, nerveless, lacimiate ; composed, | 
internally, of large, transparent, stratified cells ; eaternally of minute, 
coloured cellules. Fructification; 1, linear, convex, longitudinal, 
(nerve-like) conceptacles, containing a dense mass of minute spores ; 
2, tetraspores (unknown)? SrenocramMe (Harv.),—from reves, 
narrow, and ypaupn, a Cine; alluding to the linear fructification. 
SrenocRamME interrupta; frond stipitate, membranaceous, flabelliform, 
more or less deeply laciniate ; lacinie repeatedly dichotomous, their 
apices obtuse; conceptacles forming a nerve-hke line through the 
centre of each lacinia, and (usually) abruptly terminating opposite 
the furcation. 
STENOGRAMME interrupta, Mont. in Duchart. Rev. Bot. 1846. p. 483. 
STENOGRAMME europea, Harv. in Herb. 1847. 
DELESSERIA interrupta, 4g. Sp. Alg. vol.i. p.179. Ag. Syst. p. 250. Mont. 
in Webb, Ot. Hisp. p. 15. t.8. Endl. 3rd Suppl. p. 53. 
Has. Among rejectamenta, probably washed up from deep water. Annual ? 
November. Very rare. Bovisand, near Plymouth, Dr. John Cocks. 
Mount Edgecombe, Rev. W. S. Hore. 
Geogr. Distr. Cadiz, Cabrera. Plymouth Harbour. 
Descr. Root, a small conical disk. ond furnished with a short stem, 3-4 
lines long, which soon becomes compressed, and rapidly expands into a fan- 
shaped membrane, from three to five inches, or perhaps more, in length, 
and fully as much in breadth. In some specimens the membranous expan- 
sion is divided, nearly to its base, into numerous, linear, ribbon-like laciniz, 
which are more or less regularly dichotomous, with narrow axils, and 
rounded tops; in others the laciniated portion extends only a half, or two- 
thirds the length of the frond, the remainder being undivided; and in 
others again, the truncated tips of the frond, which have been injured from 
some cause, throw out proliferous, cuneate, forked leaflets. In all varieties, 
something of a fastigiate outline is preserved. The margin, which is 
usually quite flat and very entire, sometimes throws out minute, lobed, and 
somewhat curled fringing processes. Barren fronds are quite destitute of 
nerve; fertile ones (which are more common) have the centre of each 
lacinia traversed by a raised, nerve-like line, which commences just below 
one of the forkings, and terminates nearly opposite to a lower fork: this is 
the commencement of fructification. It rarely, if ever, happens that the 
whole of this line proves fertile; usually, small portions varying from one 
to four lines in length become much thickened, considerably raised, and of 
a dark-red colour; and these, at maturity, are filled with innumerable, 
minute spores; sometimes but a very minute portion of the line is trans- 
formed, and a spherical conceptacle results (fig. 6.). Substance cartilagineo- 
membranous, becoming flaccid, and adhering to paper in drying. Colour 
a fine clear, pinky red, becoming orange in fresh water; darker towards the 
base, and becoming duller in drying, but preserving a polished surface. 
The cells of the central portion of the frond are large, and apparently 
