. The rusts of Australia, their structure, nature, and classification . tages of development: T, filament with two septa, the upper two segments destined to become teleuto-spores, the lowermost a vesicle; Tl, similar filament, somewhat more ad-vanced, the vesicle beginning to push out from the lowermost segment; T-,similar filament still more advanced, the uppermost cell distending, in thenext growth is taking place at the side, and in the lowest the vesicle hasattained considerable development; T3, nearly mature head, with two darkteleutospores; U, basidium of a detached uredospore. (Stained.
. The rusts of Australia, their structure, nature, and classification . tages of development: T, filament with two septa, the upper two segments destined to become teleuto-spores, the lowermost a vesicle; Tl, similar filament, somewhat more ad-vanced, the vesicle beginning to push out from the lowermost segment; T-,similar filament still more advanced, the uppermost cell distending, in thenext growth is taking place at the side, and in the lowest the vesicle hasattained considerable development; T3, nearly mature head, with two darkteleutospores; U, basidium of a detached uredospore. (Stained.) 179. Abnormal teleutospore head of three teleutospores, a septum beneath the lower- most. r8o. Normal teleutospore head, with two teleutospores above septum and a vesiclebelow, there being no septum below the vesicle. 181. Teleutospore head in which the vesicle is apparently at the apex, but this isprobably due to displacement in mounting. 1S2, 183. Normal teleutospore heads. 184. Uredospores with prominent germ pores, serrated epispore thickened and deniteat
Size: 1204px × 2075px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookidrustsofaustr, bookyear1906
