. Annual report of the New York State College of Agriculture at Cornell University and the Agricultural Experiment Station. New York State College of Agriculture; Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). Fungous Flora of the Soil 463. Family Thamnidiaceae Thamnidium elegans Link, Observ. in Ord. Plant. Nat. i: 45; Berliner Magaz. Naturf. Freunde 3:21. 1809. Fischer, Rab. Krypt. Flora Abt. 4, i: 241-244. fig. 41. 1892. Sporangiophores erect, ending in large sporangia. Below these, in the middle or under part of the sporangiophore are generally 2-5 ve
. Annual report of the New York State College of Agriculture at Cornell University and the Agricultural Experiment Station. New York State College of Agriculture; Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). Fungous Flora of the Soil 463. Family Thamnidiaceae Thamnidium elegans Link, Observ. in Ord. Plant. Nat. i: 45; Berliner Magaz. Naturf. Freunde 3:21. 1809. Fischer, Rab. Krypt. Flora Abt. 4, i: 241-244. fig. 41. 1892. Sporangiophores erect, ending in large sporangia. Below these, in the middle or under part of the sporangiophore are generally 2-5 verticillate horizontal side branches that are forked several times (2-10) after an obtuse- angled fashion. The branchlets finally end in sporangioles. The whole sporangiophore is usually cm. occasionally 6 cm. high by 25-35^ thick. The white floccose group of forked verticillate branches are relatively very small, mm. broad. The main verticillate branches up to the forking are 150-200/z long by 8/u thick; the forks of the first order are 40-60/x long; the forks of the last order are only 4-6^1 long by 2yu broad. The membrane of the sporangiophore and its branches is colorless and smooth; contents are also colorless. Branching of the sporangiophore is very variable (see variation below). Chief sporangia (haupt- sporangia) globose, large, ioc-200/i diameter, occasionally smaller, at maturity white with large ovate or bell-shaped, colorless, smooth columella; sporangioles globose, small, white, 8-16iU in diameter, mostly 4-spored, varying, however, from i to 10; spores of haupt- sporangia and sporangioles similar and equally large (except in the one-spored sporangioles where they are globose, 8-16/x), ellipsoidal, 8-1 o/x by 6-8^1, smooth, weak gray-brown. Zygospores are globose, black, with thick black warty exospore and yellowish endospore. Zygospores not observed in our cultures. Hab. Isolated from pepper root taken from soil of plant-breeding plats of Cornell Unive
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