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thallus surface

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Key to the lichen genera of the Guianas
Thallus surface slightly felty, without cortex (Cladonia signata would also key out here) Cladina b Thallus surface smooth, with thin cortex Cladonia 8a Thallus branches with ... the thallus, disc level with thallus surface, sometimes surrounded by a raised thalloid margin 111 b Apothecia adnate to sessile, often constricted at the base; disc above thallus surface 115 111a Thallus ...
www.mnh.si.edu


Key to Species of Gyalideopsis
Ascospores (1-)2 per ascus; hyphophores absent; thallus surface irregular ----- Gyalideopsis bispora Vezda, Folia Geobotanica et Phytotaxonomica (Praha) 14: 63 (1979) 52a. ...
fieldmuseum.org


Ulva fasciata  Delile 1813
Cells usually square, 8-20 µm wide, 14-40 µm long ...
hawaii.edu


Key to the Cladoniaceae of the Guianas
Cladonia 1b Primary thallus absent or crustose; podetia or pseudopodetia never squamulose 2 2a Cortex well developed, cartilaginous, measuring about half of the podetial wall; podetium surface smooth, shiny, ... surface; check near the tips of the podetia!) 11 10b Podetia less densely branched or unbranched, or with squamules 28 11a Thallus with yellowish tinge, containing usnic acid 12 11b Thallus ...
www.mnh.si.edu



The seaweed is grass green in color and can form extensive mats over the reefs surface ... blade rolled into a circle, upper surface is whitish, lower surface brownish. Tends to be smaller then ... tall. When reproductive "bumps" appear on the surface, it is illegal to collect reproductive Gracilaria ...
coralreefnetwork.com


Marine Plants of Hawai'i -- Siphoncladales
The seaweed is grass green in color and can form extensive mats over the reefs surface ...
coralreefnetwork.com More from this site

Dying Seaweed in Atlantic Canada reflects Nutrient depletion of Seawater
Fucus, and along the length of the mature thallus in Ascophyllum. The quantity of tissue lost is considerable. Ascophyllum may lose 50% of its ... low temperatures and higher winds in winter induce mixing of the water column, which raises surface water nutrient content to its highest annual concentration. Since these physical factors (climate) that drive ...
fisherycrisis.com


Gracilaria tikvahiae  McLachlan 1987
Herbarium sheets of Gracilaria tikvahiae showing morphological variations. Description Thallus 12-15 cm tall, comprised of finely branched clumps, irregularly branched, 1mm wide ... , 10-35 mm diam., 17-45 mm long, cruciately divided, scattered in surface layers. Spermatangia in sori, scattered. Cystocarps hemispherical, to 1mm diam., numerous; carposporangia ...
hawaii.edu




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