. The fungal diseases of the common larch . Larches. ^& (On the ground] \ %l I On Plant B I -y Fig. 71. of some definite species, the host b. In the case of the black rust of wheat, this plant is the barberry. The germ- tube which grows from a sporidium pierces the cuticle and enters an epidermal cell of the host B, and develops into a mycelium which fills the tissues, and gives rise to another special type of pustule, also usually rust-red in colour, which is called the aecidium. The aecidium pustules contain spores, known as aecidiospores, which are incapable of infecting plant b, but in
. The fungal diseases of the common larch . Larches. ^& (On the ground] \ %l I On Plant B I -y Fig. 71. of some definite species, the host b. In the case of the black rust of wheat, this plant is the barberry. The germ- tube which grows from a sporidium pierces the cuticle and enters an epidermal cell of the host B, and develops into a mycelium which fills the tissues, and gives rise to another special type of pustule, also usually rust-red in colour, which is called the aecidium. The aecidium pustules contain spores, known as aecidiospores, which are incapable of infecting plant b, but infect plant a by sending their germ- tubes through the stomata of the epidermis. The mycelium on plant b generally produces, in addition to pustules,known as5permogfoma(orp3/c?iidia), which bear minute spore-like bodies, which are generally. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Hiley, W. E. (Wilfrid Edward). Oxford : Clarendon Press
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisheroxfor, bookyear1919
