. Lichens. Lichens. SPERMOGONIA 199 "pycnidial" non-sexual character of the organs, recognized eight types of "sporophores" differing in the complexity of their branching or in the form of the "spores'' (Fig. 113 a): 1. The Peltigera type: the sporophores consist of a basal cell bearing one or more long sterigmata and rather stoutish ellipsoid spores. (These are true pycnidia.) 2. The Psora type: a more elongate simple sporophore with sterigmata and oblong spores. 3. The Cladonia type: a branching sporophore, each branch with sterig- mata and oblong spores. 4. The Squa
. Lichens. Lichens. SPERMOGONIA 199 "pycnidial" non-sexual character of the organs, recognized eight types of "sporophores" differing in the complexity of their branching or in the form of the "spores'' (Fig. 113 a): 1. The Peltigera type: the sporophores consist of a basal cell bearing one or more long sterigmata and rather stoutish ellipsoid spores. (These are true pycnidia.) 2. The Psora type: a more elongate simple sporophore with sterigmata and oblong spores. 3. The Cladonia type: a branching sporophore, each branch with sterig- mata and oblong spores. 4. The Squamaria type (called by Gluck Placodiutn): also a branching sporophore but with long sickle-like bent spores. 5. The Parmelia type: a more complicated system of branching and anastomosing of the sporophores, with oblong spores. 6. and 7. The Sticta and Physcia types: in both of these the sporo- phores are multiseptate; they consist of a series of radiately arranged hyphae rising from a basal tissue all round the pycnidium. They anasto- mose to form a network and bud off "spermatia'' from the free cells or rather from minute sterigmata. In the Physcia type there is more general anastomosis of the sporophores and frequently masses of sterile cells along with the fertile members occupy the centre of the pycnidium. The sper- matia of these and the following Endocarpon type are short cylindrical bodies (Fig. 113 B).. 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 Smith, Annie Lorrain. Cambridge, At the University Press
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