51�Թ�

Small tuberous shoots, comparable on a large scale with the bulbils of Lycopodium Selago, are occasionally produced in the axils of some of the persistent leaf-bases; these are characteristic of sickly plants, and serve as a means of vegetative reproduction.

In addition to sporangia and the conidial spores referred to, some Mucorini show a peculiar mode of vegetative reproduction by means of gemmae or chlamydospores—i.e. short segments of the hyphae become stored with fatty reserves and act as spores.

E. canadensis, the Canadian water-weed, was accidentally introduced into Britain about 1840, and spread throughout Europe with extraordinary rapidity, and entirely by vegetative reproduction, as only the ♀ plant exists on this side of the Atlantic.

Either a moss plant clones itself, by passing on exactly the same DNA to new individuals via vegetative reproduction.

Aspen, unlike evergreens, do not usually grow from seeds, but rather by vegetative reproduction, sending up suckers from a mother tree.