. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. 280 Prof. Dr. C. Meresclikovsky's Diagnoses Var. detrita, forma albescens^ Mer. Mereschkovsky, /. c. p. 224. Thallo sordide albesceiite vel grlseo-albescente. Ad ssepimenta. Spec. orig. (numeros.) ibidem. liossia Media (Kazan). Forma ni'greseeus, Mer. Mereschkovsky, I. c. Thallo obscuro cinereo-nigrescente vel nigrescente ; apot-hecia parva, disco iiigro, undo, margine ititegro. Ad saepimenta. Sprc. orig. (numeros.) ibidem. * Kossia Media (Kazan). Ill order to make the distinc
. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. 280 Prof. Dr. C. Meresclikovsky's Diagnoses Var. detrita, forma albescens^ Mer. Mereschkovsky, /. c. p. 224. Thallo sordide albesceiite vel grlseo-albescente. Ad ssepimenta. Spec. orig. (numeros.) ibidem. liossia Media (Kazan). Forma ni'greseeus, Mer. Mereschkovsky, I. c. Thallo obscuro cinereo-nigrescente vel nigrescente ; apot-hecia parva, disco iiigro, undo, margine ititegro. Ad saepimenta. Sprc. orig. (numeros.) ibidem. * Kossia Media (Kazan). Ill order to make the distinction between tlie two allied species—Physcia labrata, Mer., and Physcia virella (Acb.), Mer.—more clear, I oive liere two figures siiowing the peri- })iieral lobes, and below a longitudinal section along a lobe. The darkened parts represent the sorals, being superficial in Ph. virella and terminal or lateral in Ph. labrata. Fig. 1. Fig. trtimn. ,m. ~~) ( k / I s H' ^". 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 London, Taylor and Francis, Ltd
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