. The Bryologist. Mosses; Liverworts; Lichens; Botany; Bryology. Theloschistes polycarpus (Ehrh.) Tuckm. (Fig. 4.) Thallus foliaceous, re- duced, with narrow, many cleft divisions, which are short and rounded. In color greenish-yellow, turning darker with age. The underside much wrinkled and covered with short white rhizoids. The apothecia are medium, the disk is concave, bright orange with crenulate margin. They are Fig. 4. Theloschistes often so numerous as to almost cover the polycarpus. j^^^g ^y^^ thallus, except at the outer edge. This species usually occurs in small, orbicular patches, b
. The Bryologist. Mosses; Liverworts; Lichens; Botany; Bryology. Theloschistes polycarpus (Ehrh.) Tuckm. (Fig. 4.) Thallus foliaceous, re- duced, with narrow, many cleft divisions, which are short and rounded. In color greenish-yellow, turning darker with age. The underside much wrinkled and covered with short white rhizoids. The apothecia are medium, the disk is concave, bright orange with crenulate margin. They are Fig. 4. Theloschistes often so numerous as to almost cover the polycarpus. j^^^g ^y^^ thallus, except at the outer edge. This species usually occurs in small, orbicular patches, but occa- sionally larger specimens are found; it grows on trees, dead wood and on Theloschistes lychneus (Nyl.) Tuckm. (Fig. 5 ) This species is sometimes confused with Cetraria juniperina var. pinastri which it resembles, but from which it can be distinguished readily, as the thallus of the Cetraria is larger, more leaf-like, the under- side is always yellow, the soredia Fig. 5. Theloschistes lychneus. are sulphur color, while in /j/^:^- neus the thallus is flatter, more appressed, light gray underneath and covered with fine rhizoids; the soredia are light lemon color. The lobes of the thal- lus of T. lychneus are broader than in T. polycarpus, and are not quite. 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 Grout, A. J. (Abel Joel), b. 1867; Smith, Annie Morrill; Jennings, Otto Emery, 1877-; American Bryological and Lichenological Society; American Bryological Society. St. Louis, Mo. [etc. ] American Bryological and Lichenological Society
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbotany, booksubjectli
