. A handbook of cryptogamic botany. Cryptogams. Fig. Co^rinus siercorarius Fr. Longi- tudinal section of the end of a gill in com- plete spore-bearing. t, trama; /, sterile palisade cells : b^ basids with spores; ?, cystids (x 300). (After Brefeld.) they are termed ^///j- or lamellcB in the Agaricini,/(7^-w or tubuH in Poly- pore^, and teetk in the Hydne*. In many of the forms the hymenium is exposed from the first ; in a series of others a membrane (vehim partiale) connects the edge of the pileus all round with the stalk, and on its rupture by the extension of the pileus, part of it is left a
. A handbook of cryptogamic botany. Cryptogams. Fig. Co^rinus siercorarius Fr. Longi- tudinal section of the end of a gill in com- plete spore-bearing. t, trama; /, sterile palisade cells : b^ basids with spores; ?, cystids (x 300). (After Brefeld.) they are termed ^///j- or lamellcB in the Agaricini,/(7^-w or tubuH in Poly- pore^, and teetk in the Hydne*. In many of the forms the hymenium is exposed from the first ; in a series of others a membrane (vehim partiale) connects the edge of the pileus all round with the stalk, and on its rupture by the extension of the pileus, part of it is left attached to the stalk, when it is termed the annulus or ring (fig. 320), though this does not occur in all cases. In a third series a membrane {velum universale or volva) (fig. 318) encloses the whole sporophore, pileus and stalk alike, and in the species be- longing to Amanita, a sub-genus of Agaricus, both velum universale and velum partiale are present. In these latter cases, therefore, in which a membrane is present, the sporophore differs from the truly gymno- carpous forms. The de- velopment of Amanita is especially noteworthy, since the gills are not developed on the free inner surface of the pileus, but during an early condition from tissue common to both stalk and pileus. Immediately beneath the hymenium is a layer of tissue called the sub- hymenial layer, distin- guished from the rest of the tissue of the sporo- phore by the greater density of the ramifica- tions of the hyphae and by the more abundant Fig. 322.—Polyj>orusigmariusYt. Transverse section of the f-\T/-»fr»r\lQcmi^ /^r»nt-^vifo under Surface. ^, the plexus of hypha; forming the walls be- protopiasmic contents, tween the pores ; j, the hymenium (x 270). (After Luerssen.). 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 Bennett, Al
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