. Cryptogamic plants of the USSR. (Flora sporovykh rastenii SSSR). Plants. 244 Aeciospores globoid or ellipsoid, 21—23 X 18 —25/u; outer walls colorless, densely verruculose, with smooth areas; contents orange-yellow (according to Fischer). Uredia hypophyllous on red spots, scattered or in groups, orange-yellow, covered by hemispherical peridia; peridial cells becoming gradually higher toward the ostiole and their inner walls thicker; ostiolar cells considerably thickened, echinulate at their upper outer margin. Urediospores ellipsoid or clavate, 28 —42 X 14 —ISju; outer wall thin, sparingly e
. Cryptogamic plants of the USSR. (Flora sporovykh rastenii SSSR). Plants. 244 Aeciospores globoid or ellipsoid, 21—23 X 18 —25/u; outer walls colorless, densely verruculose, with smooth areas; contents orange-yellow (according to Fischer). Uredia hypophyllous on red spots, scattered or in groups, orange-yellow, covered by hemispherical peridia; peridial cells becoming gradually higher toward the ostiole and their inner walls thicker; ostiolar cells considerably thickened, echinulate at their upper outer margin. Urediospores ellipsoid or clavate, 28 —42 X 14 —ISju; outer wall thin, sparingly echinulate, colorless; contents orange-yellow (Figure 58). Telia mostly epiphyllous, black-brown. Teliospores intracellular in the epidermis, ellipsoid or subgloboid, dividing longitudinally into 4 — 8 cells, 24 —35)u across; walls brown, thickened above, up to S/u; pore in each cell at the site of intersection with the longitudinal septum of the teliospore. Badisiospores globoid, — across. Aecia on Picea. Uredio- and teliospores on species of Mairania. To the same species belong the fungi parasitic on Arbutus and Arctostaphylos, in western North America, and on the bearberry (Arctostaphylos uva-ursi (L.) Spr.) in Europe; on the latter only the uredial stage is known. In the Khibiny Mountains Tranzschel found severely infected specimens of MairaJiia alpina growing side by side with unaffected Arctostaphylos. General distribution: mountains of Central Europe, Arctic regions of Europe, Asia and northwestern North America, USSR (Sakhalin I., Kuril Is.), and Japan (Hokkaido). On Picea excelsa Link — aecia in culture. On Mairania cdpina (L.) Desv. (= Arctostaphylos alpina Spreng., A. alpina Niedenzu) — EUROPEAN PART: (Murmansk Region; Vudyarv- chorr in the Khibiny Mts.); W SIBERIA: Irt. (Omsk Region: Manya River); E SIBERIA: Lena-Kol. (Yakut ASSR: former Vilyuisk Subregion). On Mairania (Arctous) japonica Nakai — FAR EAST: Sakh. (Sakhalin I., Ku
Size: 1378px × 1813px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectplants
