Fungi, Ascomycetes, Ustilaginales, Uredinales . Fg- °- Laboulbenia triordinata Thaxter; 13= after Thaxter. ; r. Laboulbenia ehaetophorayoung perithecium and tricho-gyne, 360 ; after Fault. PYRENOMYCETES [CH. contain oil globules. Between adjacent cells that have the same origin theprotoplasm is continuous through broad pits. The cytoplasm on each sidedips into the pit, forming a thick strand which, in Laboulbenia at least, appearsto be intersected by the middle lamella (Faull). The latter in favourablecases is seen to be perforated by one or more fine pores through which com-plete continuit
Fungi, Ascomycetes, Ustilaginales, Uredinales . Fg- °- Laboulbenia triordinata Thaxter; 13= after Thaxter. ; r. Laboulbenia ehaetophorayoung perithecium and tricho-gyne, 360 ; after Fault. PYRENOMYCETES [CH. contain oil globules. Between adjacent cells that have the same origin theprotoplasm is continuous through broad pits. The cytoplasm on each sidedips into the pit, forming a thick strand which, in Laboulbenia at least, appearsto be intersected by the middle lamella (Faull). The latter in favourablecases is seen to be perforated by one or more fine pores through which com-plete continuity is established1. There is evidence that a stout strand ofcytoplasm unites contiguous cells in the appendages. The spores are remarkably uniform throughout the group, being in-variably hyaline and fusiform or acicular in shape and almost invariablytwo-celled (fig. 132). The cells are commonly of unequal size, that nearest the apex of the ascus being the larger, and bothare uninucleate. The spore is clothed in a gelati-nous sheath especially
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectfungi, bookyear1922
