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The fronds of certain marine algæ used as food, and for making a sauce called laver sauce. Green laver is the Ulva latissima; purlpe laver, Porphyra laciniata and P. vulgaris. It is prepared by stewing, either alone or with other vegetables, and with various condiments; - - called also sloke, or sloakan. Mountain laver…

lly called Lichenes), having no distinction of leaf and stem, usually of scaly, expanded, frond-like forms, but sometimes erect or pendulous and variously branched. They derive their nourishment from the air, and generate by means of spores. The species are very widely distributed, and form irregular spots or patches,…

erless plant (Marchantia polymorpha), having an irregularly lobed, spreading, and forking frond.

A low fleshy fern (Botrychium Lunaria) with lunate segments of the leaf or frond.

A genus of ferns with twining or climbing fronds, bearing stalked and variously-lobed divisions in pairs.

A sweet white efflorescence from dried fronds of kelp, especially from those of the Laminaria saccharina, or devil's apron.

An extinct genus of tree ferns with large, two-ranked leaves, or fronds.

e genus Botrychium, esp. B. Lunaria; -- so named from the crescent-shaped segments of its frond.

rangement of nerves and veins, especially those of leaves; neuration. The outlines of the fronds of ferns, and their nervation, are frail characters if employed alone for the determination of existing genera. J. D. Hooker.

royal fern (Osmunda regalis), which grows in wet or boggy places, and has large bipinnate fronds, often with a panicle of capsules at the top. The rootstock contains much starch, and has been used in stiffening linen.

One of the small divisions of a decompound frond or leaf. See Illust. of Bipinnate leaf, under Bipinnate.

are in uncovered roundish points, called sori, scattered over the inferior surface of the frond or leaf. There are numerous species.

s, etc. See Caucus. -- Primary pinna (Bot.), one of those portions of a compound leaf or frond which branch off directly from the main rhachis or stem, whether simple or compounded. -- Primary planets. (Astron.) See the Note under Planet. -- Primary qualities of bodies, such are essential to and inseparable from the…

ffspring; -- applied to a flower from within which another is produced, or to a branch or frond from which another rises, or to a plant which is reproduced by buds or gemmæ.

The East Indian leguminous tree Butea frondosa. See Gum Butea, under Gum. [Written also pales and palasa.]

of soft, elastic, yellowish brown chaff, gathered in the Hawaiian Islands from the young fronds of free ferns of the genus Cibotium, chiefly C. Menziesii; -- used for stuffing mattresses, cushions, etc., and as an absorbent.

rn (Bot.), a common American fern (Botrychium Virginianum) having a triangular decompound frond and a long-stalked panicle of spore cases rising from the middle of the frond. -- Rattlesnake grass (Bot.), a handsome American grass (Glyceria Canadensis) with an ample panicle of rather large ovate spikelets, each one com…

enus Retepora. They form delicate calcareous corals, usually composed of thin fenestrated fronds.

A mark left upon a stem or branch by the fall of a leaf, leaflet, or frond, or upon a seed by the separation of its support. See Illust. under Axillary.

A large blackfish seaweed (Agarum Turneri), the frond of which is punctured with many little holes.