1886.) i Botany. i 279 
follows, viz: “ Besides this normal branching there is a copious 
, formation of adventitious shoots. These are formed endogen- 
ously upon the best nourished parts of the Cuscuta stem, and also 
upon the parts which bear the haustoria, where the host-plant and 
parasite are in immediate contact. The rudimentary shoot-buds 
are formed beneath the cortex of the Cuscuta stem, and break 
through in a manner similar to the lateral roots of vascular plants. 
They develop either into inflorescences, or upon injury to the rest 
of the plant, into vegetation shoots.” 
These adventitious branches were also noticed, very briefly and 
somewhat vaguely, by Solms-Laubach in a paper on Parasitic 
Phanerogams in Pringsheim’s Jahrbuch für wissenchaftliche 
Botanik, vol. v1, 1868.— Charles E. Bessey. 
SYMBIOSIS BETWEEN A FUNGUS AND THE ROOTS OF FLOWERING 
PLants.—In investigating the structure of the vegetative organs 
of Monotropa hypopitys, M. F. Kamienski (Mem. de la Soc. Na- 
tionale des Sciences Naturelles de Cherbourg) came to the con- 
clusion that it is not a parasite, the most careful observation fail- 
ing to detect any haustoria or other parasitic union with the root 
of any host.’ On the other hand he found the root of the Mono- 
tropa to be completely covered by the mycelium of fungus which 
branches abundantly and forms a pseudo-parenchymatous envel- 
ope, often two or three times the thickness of the epidermis, and 
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