. Biology and man. Biology; Human beings. Remdeer moss Cross section ol Uchen tballus Section oi thallua. PoreUa Order 3 Rhodophyceae ("rose seaweed"). The red algae; mostly marine; attached to rocks; reddish to purple. Examples, Nemalion, or threadweed, Polysiphonia, Batrachospermum. CLASS 3 FUNGI ("mushrooms"). Thallophytes without chlorophyl. Order 1 Phycomycetes ("alga fungus"). Algalike fungi; no divi- sions in hyphae. Examples, water molds (often parasitic on fishes), Phytophthora (the cause of potato rot), downy mildew, black or bread mold (see illustration
. Biology and man. Biology; Human beings. Remdeer moss Cross section ol Uchen tballus Section oi thallua. PoreUa Order 3 Rhodophyceae ("rose seaweed"). The red algae; mostly marine; attached to rocks; reddish to purple. Examples, Nemalion, or threadweed, Polysiphonia, Batrachospermum. CLASS 3 FUNGI ("mushrooms"). Thallophytes without chlorophyl. Order 1 Phycomycetes ("alga fungus"). Algalike fungi; no divi- sions in hyphae. Examples, water molds (often parasitic on fishes), Phytophthora (the cause of potato rot), downy mildew, black or bread mold (see illustration, p. 375). Order 2 Ascomycetes ("bladder fungus"). Fungi bearing spores in sacs; hyphae divided into cells. Examples, cup fungi, the edible morel, the mildews, black knot, yeast (see illustration, p. 371). Order 3 Basidiomycetes ("basidium fungus"). Fungi bearing spores on outside of a steplike structure called a basidium, from basis, or pedestal. Examples, rusts, smuts, mushrooms, pore fungi, shelf fungi, puffballs (see illustration, p. 594). Group 4 Lichens These curious structures are compound growths of fungi and algae. The fungal partner is generally an ascomycete; the algal partner is a green alga related to pleurococcus or to one of the blue-green algae. Examples, rock tripe, reindeer moss, Iceland moss, Spanish moss. PHYLUM II BRYOPHYTES ("moss plants"). Mosses and their allies. This phylum of plants shows several advances over the algae and fungi. There is a well-marked sexual reproduction with archegonia and antheridia, as well as defi- nite formation of spores; all have a regular alternation of sexual and asexual generations. There is no vascular system, that is, no specialized conducting tissue in the supporting structures. CLASS 1 HEPATICAE ("liver"). Liverworts; body consists of flat, leaf- like, green, forking thallus; live in moist places. Examples, Marchantia, Please note that these images are extracted from scan
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