Sticta filix (Sw.) Nyl.
Details
Sticta filix (Sw.) Nyl., J. Linn. Soc., Bot. 9: 246 (1866)
Sticta filix (Sw.) Nyl.
Biostatus
Nomenclature
(Sw.) Nyl.
Sw.
Nyl.
1866
246
ICN
species
Sticta filix
Classification
Subordinates
Synonyms
Associations
Descriptions
Sticta filix (Sw.) Nyl.
Thallus foliose, ± erect or pendulous or spreading, to 5-12(-15) cm tall, firmly attached by a ± root-like holdfast, supporting a short (1-2 cm), thickened, terete or ± canaliculate stalk. Lobes palmate, oftenimbricate, complex, with a distinctly grooved midrib, rather fragile, often ± fenestrate, brittle when dry, margins dissected, sinuses circular, irregularly lobed or notched, appearing phyllidiate. Upper surface bright green to greenish-yellow or olive, smooth or slightly wrinkled, matt, grooved-canaliculate in mid-line of lobes, often dark brown to black at base of lobes and on basal stalk, internal cephalodia visible as raised, hemispherical lumps. Lower surface pale greenish-white, glabrous, shining at margins, yellowish to dark brown or blackening towards centre, midrib conspicuously raised, dark red-brown and often short-tomentose, tomentum rather variable, thick, a ± uniform dark brown or pale white felt, to a short, sparse, pale pubescence on central ribs. Cyphellae ± numerous, small, scattered, pock-like with a poorly defined margin, hardly raised, membrane of pit yellowish-brown. Apothecia sessile, scattered, often crowded towards margins, rarely at centre, 0.5-4 mm diam., disc red-brown, smooth, matt, concave at first, becoming plane to subconvex with age, margins thick, striate-crenulate, inflexed at first, pale brown or pinkish, occluded with age. Ascospores fusiform, colourless, 1-3-septate, 30-38(-45) × 9-11 µm.
Taxonomic concepts
Lobaria filix (Sw.) Räuschel
Sticta filix (Sw.) Nyl.
Lobaria laevigata (Kremp.) Hellb.
Sticta filix (Sw.) Nyl.
Platisma filix (Sw.) Hoffm.
Sticta filix (Sw.) Nyl.
Sticta filix var. laevigata (Kremp.) Stizenb.
Sticta filix (Sw.) Nyl.
Stictina filicina (Ach.) Nyl.
Sticta filix (Sw.) Nyl.
Collections
Metadata
4146863a-586b-4ff9-9590-39ec946ad4ad
scientific name
Names_Plants
1 January 2000
15 September 2010