. iiiiiiiaii Fi<i. -iVi. — Pi.,-idi:vnumi\. pini (corlicola). <i, n. Mycelial stroma developed in tlic rind; the host-cells have become isolated from each other and contain haustoria, A, of the fungus. /, The iKjridium. (After R. Hartig.) young plants soon succumb to attack, the struggle with old trees may go on for years. Fresh infection of older stems occurs generally in the hiudier ])arts of the tree, where tiie b;irk is still thill. Tycnidia (six-rmogonia) are developed between the riiid- parenchyma (periderm) and cork, generally towanls the margin of diseased spots. The coiiidia eme
. iiiiiiiaii Fi<i. -iVi. — Pi.,-idi:vnumi\. pini (corlicola). <i, n. Mycelial stroma developed in tlic rind; the host-cells have become isolated from each other and contain haustoria, A, of the fungus. /, The iKjridium. (After R. Hartig.) young plants soon succumb to attack, the struggle with old trees may go on for years. Fresh infection of older stems occurs generally in the hiudier ])arts of the tree, where tiie b;irk is still thill. Tycnidia (six-rmogonia) are developed between the riiid- parenchyma (periderm) and cork, generally towanls the margin of diseased spots. The coiiidia emerge from llie iii|itiired cork-layers of the bark as a honey-sweet liipiid. II. >rayi states that this liniiid is gi\-en off in such tpiaiitity from species of ]') ridi'rniiIIIII in .lapaii, that it is collected and eaten bs' the natives.
Size: 2557px × 1955px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectparasit, bookyear1897
