WebPolysiphonia stricta (previously urciolata) from coast of New Hampshire USA Photo by James Gerweck, University of N ew Hampshire, Durham USA . Polysiphonia lanosa from coast of New Hampshire USA, a hemiparasite (partially photosynthetic) on Ascophyllum nodosum. Photo by James Gerweck, University of New ... WebCentral to any re-evaluation of the genus is a detailed examination of the type species of Polysiphonia, P. urceolata (Lightfoot ex Dillwyn) Greville, which is conspecific with P. stricta (Dillwyn) Greville. We here report on the vegetative and reproductive morphology of P. stricta, including P. urceolata, based on type and other material from ...
Polysiphonia Greville - Wikispecies - Wikimedia
WebPolysiphonia stricta (Dillwyn) Greville. Also known as Polysiphonia urceolata and Polysiphonia spiralis. Description: Soft, slender cylindrical, usually densely tufted, deep red fronds, to 200 mm long, arising from a creeping rhizoidal base. Branching … WebDownload scientific diagram , 24. Tetrasporangial development in Polysiphonia stricta. Fig. 23. Stages of development of tetrasporangia-bearing segments, not shown in sequential segments of a ... breath of life tv.com
Polysiphonia stricta - Wikidata
WebPolysiphonia stricta. Blæretang Fucus vesiculosus. Savtang Fucus serratus ... WebPolysiphonia Greville, 1823, nom. et typ. cons. Type species: Polysiphonia urceolata (Lightfoot ex Dillwyn) Greville = Polysiphonia stricta (Mertens ex Dillwyn) Greville; Synonyms . Carradoria Martius, 1833, nom. illeg. (Superfluous substitute name for Hutchinsia … Polysiphonia stricta is a small red marine alga in the Division Rhodophyta. Polysiphonia stricta forms dense clumps of branching axes. The plants grow to 25 cm high. See more P. stricta grows as small tufts of much branched tufts, growing to no more than 25 cm high. The axes are erect, ecorticate, with 4 periaxial cells growing from prostrate axes. All 4 of the periaxial cells are of the same length. See more Spermatangial branchlets are formed in clusters at the apices. Cystocarps are on wide stalks and are urceolate. The tetraspores are in series in the final branches. See more Epizoic and epiphytic in the low littoral to 20 m. See more Found around the British Isles, the West Atlantic and American Atlantic. See more cotton blankets twin