Ser. RHoposPERMEZ. Fam. Spongiocarpee 7 
Puate XCIV. 
FURCELLARIA FASTIGIATA, Zamow. 
Gen. Cuar. Root branching. Frond cylindrical, dichotomous, cartilagi- 
nous, solid; the aas consisting of densely packed, longitudinal, 
interlacing and anastomosing filaments; the periphery of coloured, 
horizontal, dichotomous filaments, issuing from those of the axis, 
whose lower half is composed of large, elliptical cells; their apices 
of much smaller cylindrical cellules. Fructification, “ terminal, elon- 
gated, pod-like receptacles, contaiming a stratum of dark, oblong, 
pear-shaped spores in the circumference” (Grev.). FuRcELLARIA 
(Lamour.),—from fureula or furcilla, a little fork; alluding to the 
forked frond. 
FurceLLartia fastigiata. 
Furcettaria fastigiata, Lamour. Ess. p. 26. dg. Sp. Alg. vol. i. p. 108. 
Ag. Syst. p. 274. Grev. Fl. Edin. p.286. Grev. Alg. Brit. p. 67. t. 11. 
Hook. Brit. Fl. vol. ii. p. 283. Wyatt, Alg. Danm. no. 106. Harv. in 
Mack. Fl. Hib. part 3. p.190. Harv. Man. p.54. Endl. 3rd Suppl. p. 38. 
Kiitz. Phyc. Gen. p. 402. t. 71. 
Furceiaria lumbricalis, Lamour. Hss. p. 26. Lyngb. Hyd. Dan. p. 48. 
t.40. Hook. Fl. Scot. part 2. p.97. Spreng. Syst. Veg. vol. iv. p. 315. 
Fucus fastigiatus, Huds. Fl. Ang. p. 588. Lightf. Fl. Scot. p. 930. Gm. 
Hist. p. 108. t. 6. f.1. Good. and Woodw. in Linn. Trans. vol. iii. p. 199. 
Stack. Ner. Brit. t.6 and 14. Fl, Dan. t. 393. 
Fucus lumbricalis, Gm. Hist. p. 108. t. 6. f.2. Good. and Woodw.in Linn. 
Trans. vol. iii. p. 204. Turn. Syn. p. 317. Hist. t.6. H. Bot. t. 824. 
Fucus furcellatus, Linn. Sp. Pl. p.1631. Huds. Fl. Ang. p. 589. 
Has. On submarine rocks, within tide marks, generally growing in tidal 
pools. Perennial. Winter. Common on the shores of the British 
Islands. 
GroGr. Distr. Northern Ocean. Atlantic shores of Europe, and of North 
America. 
Descr. Root composed of entangled, branching fibres. Fronds densely tufted, 
from four to eight inches in height, half a line to a line in diameter, filiform, 
cylindrical, rising with a simple stem for two to three inches, forked, and 
afterwards repeatedly dichotomous, with acute angles; all the tops of equal 
length. The tips of the branches are either much lengthened into what 
appear like lanceolate receptacles or pods, simple or forked, one to two 
inches long, and tapering to a fine point, which fall away at maturity; or, 
on different individuals, the truncated apices produce by a second growth, 
slender, forked ramuli, terminating in ovate, pale-coloured pod-like bodies, 
half an inch in length, and either simple or forked. The elongated pod-like 
apices are usually regarded as the fructification, and their falling away 
at stated periods favours the conjecture; but their structure is similar to 
that of other parts of the frond, except that the stratum of elongated con- 
centric dark-coloured cells, which are usually regarded as the spores, and 
