A text-book of mycology and plant pathology . maand four basidiospores. The basidiospores arespindle-shaped, 14 to i6m long by 2 to 3mbroad, colorless and smooth. Exohasidiumrhododendri forms enlargements of the leavesof species of Rhododendron of greater or lesssize; colored white, or flesh-colored. Ex--Floral gall ohasidium ledi occurs on Ledum in andromedce grows on leaves andresinosa, by Exohasidium twigs of species of Andromeda in Europe and ^.^^^.•«,; Note enlarged (Pine America. Exohasidium Azalece is found onof Azalea in North America. Ex-ohasidium lauri forms widel
A text-book of mycology and plant pathology . maand four basidiospores. The basidiospores arespindle-shaped, 14 to i6m long by 2 to 3mbroad, colorless and smooth. Exohasidiumrhododendri forms enlargements of the leavesof species of Rhododendron of greater or lesssize; colored white, or flesh-colored. Ex--Floral gall ohasidium ledi occurs on Ledum in andromedce grows on leaves andresinosa, by Exohasidium twigs of species of Andromeda in Europe and ^.^^^.•«,; Note enlarged (Pine America. Exohasidium Azalece is found onof Azalea in North America. Ex-ohasidium lauri forms widely spread, yellowthen brownish, horny, or club-like galls on the stems of the laurel inItaly, Portugal and the Canary Islands. Exohasidium Warmingiiattacks the living leaves of Saxifraga aizoon in Greenland, Tyrol andnorth Italy. Family 3. Hypochnace^.—The hymenium is cobwebby. Thebasidia have two, four or sixsterigmata, Cystidia are sometimes occurs on old stumps, on leaves and on mosses. Tomcn-tella is another Fig. 84--produced on flowers ofhuckleberry, Gaylussaciaresinosa,vaccina. and swollen , Shamong, N. J., gpeciesMay 27, 1916.) FLESHY AND WOODY FUNGI 221 Family 4. Thklephorace^.—Fruit boclies of a simple type arefound in this family. They form on three trunks, either flatleathery crusts with the hymenium on the smooth upper surfaces, or theflat fructifications are raised above the substratum and have bracket-like outgrowths, which show an overlapping arrangement with thehymenial layer on the under side. The important genera are Corticium,Siereum and Thclephora. In Corticium, the fructification is leathery,membranous, fleshy, rarely wholly gelatinous, crust-like, growing resu-
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