Fig. 43. PUNCTARIA PLANTAGINEA. 
Colour. Brownish-olive ; often full brown. 
Substance. Tough, though membranaceous. Sub-opaque. 
Character of Frond. A leafy expansion ; flat ; ribless ; more or less pointed (lanceolate) 
tapering gradually to the base from near the middle of the frond. 
Measurement. From 4 to 12 inches long ; from J inch to IJ inches wide. 
Fructification. Oblong, largish groups of seeds (spores) scattered over both surfaces of the 
frond. 
Habitat. Our coasts generally. On rocks, &c., between tide-marks. Not uncommon. 
Sometimes confounded with Laminaria fascia. But the Laminaria is more glossy ; 
adheres less firmly to paper; and its texture, when examined through a microscope or 
lens, is seen to be much more close and compact than that of the Punctaria^ which has a 
comparatively loose, reticulated (net-like) structure. 
Fig. 44. ASPEROCOCCUS COMPRESSUS. 
Colour. A yellowish, or olive-green. 
Substance. Tender ; membranaceous. 
Character of Frond. A leafy expansion ; compressed ; ribless ; narrow ; tapering near the 
base into a hair-like stem, occasionally contracted at intervals as if drawn in. 
Measurement. From 6 to 18 inches long ; from J to 1 inch wide. 
Fructification. Oblong, irregular clusters of seeds (spores), scattered over both surfaces of the 
frond. 
Habitat. South of England. Cast up from deep water. Bare. 
Formed of two membranes, close-pressed, and adhering. A species intermediate 
between Punctaria and the more characteristic Asperococci, which are tubular and inflated. 
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