CRYPTOGAMIA. ALG^E. Ulva 
109 
Of the size and shape of a plum, sometimes rather flatted on one or other 
of the sides ; the rind of the thickness of the rind of a plum ; within full 
of a viscid pulp, containing either in the middle or a little on one side 
some grains just visible. Mostly loose, but sometimes adhering to jointed 
Confervse. Linn. Suec. n. 1159. Of the size of a sloe or bullace. Huds. 
572. Mr. Stackhouse observes, and I think with justice, that neither this 
nor the preceding fall properly under the genus Ulva. 
(Plum Laver. In turf pits near Yarmouth. Mr. D. Turner. E.) Ditches 
and pools, and the alpine lakes of Westmoreland. (On aquatic plants. E.) 
A. May—Oct. 
U. diaph'ana. Gelatinous, pale, yellowish, pellucid, somewhat cylin¬ 
drical, with numerous branches of various sizes. Woodward. 
E. Bot. 263. 
Very fleshy and juicy, the surface smooth; colour varying from a very pale 
brown almost like that of a wet sea sand, to a clear yellow; and then 
looking like barley sugar. The whole substance abounds with innu¬ 
merable minute seeds. On the sea coast in various places. Mr. Wood¬ 
ward in E. Bot. 
(Barley-sugar Laver. E.) TJlva flavescens. Huds. ( Alcyonium gelati - 
nosum. Linn. A. diaphanum. Agard. Hook. E.) Isles of Anglesea and 
Walney. Huds. Near Sheerness. Drawn out of the sea by a trawle net 
at Lowestoif. Mr. Woodward. 
(U. plantagin'ea. Fronds several, membranous, simple, oblong, ob¬ 
tuse, flat, entire, tapering at the base, minutely warty, brown. 
E. Bot. 2136— Dill. Muse. t. 9.f 4. 
From one small cartilaginous base arise several upright undivided fronds, 
from three to six or eight inches long, of a dull olive brown, an inch 
broad. E. Bot. 
Plantain-leaved Laver. Cromer coast. Mr. Turner. South wick, 
Sussex. Mr. Borrer. E. Bot. Sometimes parasitic on Zostera marina. 
Gray. E.) 
U. umbilicaTis. Flat; circular; sessile; target-shaped; leather- 
like. 
(E. Bot. 2286. E.)— -Bill. 8. 3 —Lob. ic. ii. 247. 2— J. B. iii. 813. 4. 
Somewhat hollow. Border indented; fixed only by a point in the middle 
to the substance on which it grows; of a dark sooty colour, shining. 
Uniform, membranaceous, pellucid, very tender, often gelatinous. Leaf 
flat, varying much in breadth. Gmelin, 214. Circular, concave, fixed by 
the centre as by a root, and firmly adhering to the rocks. From four to 
twelve inches broad; smooth, shining, often torn or perforated by the 
agitation of the sea; dull brown changing to dull purple when dry. 
Dill 45. 
(Peltate Laver. Scotch. Bloke or Slake. E.) On low sea beaches, as 
near Sheerness. Dill. On rocks and stones at low water. Huds. 567. 
P. J an.'—Dec.* 
* (Occasionally served at table stewed with lemon-juice, but it requires baking some 
hours to make it tender. Laver is frequently preserved in jars with salt. Lightfoot 
informs us that the inhabitants of the Western isles gather it in the month of March, 
and after pounding and stewing it with a little water, eat it with pepper, vinegar, and 
butter. Others stew it with leeks and onions. At Watchet, and other places on the 
Severn sea, it is pickled for exportation. E.) 
