. Fossil plants : for students of botany and geology . Paleobotany. Fig. 494. A, Stephanospermum akenipides; d, space between integument and nucellus; n, nuoellus; e, inner part of testa; sc, solerotesta; t, t, tracheidal mantle; pc, pollen-chamber; a, archegonia; td, tracheidal pad. B—D, Cono- sioma oblongum; a, level of the transverse section shown in fig. C; 6, level of transverse section D; m, lobes of tissue surrounding the micropyle; sa, sarcotesta; v, vascular bundles; p, plinth. B', section of lagenostome and part of the integument; /,/', flanges; I', waU of micropyle-funnel. E, F, Q,
. Fossil plants : for students of botany and geology . Paleobotany. Fig. 494. A, Stephanospermum akenipides; d, space between integument and nucellus; n, nuoellus; e, inner part of testa; sc, solerotesta; t, t, tracheidal mantle; pc, pollen-chamber; a, archegonia; td, tracheidal pad. B—D, Cono- sioma oblongum; a, level of the transverse section shown in fig. C; 6, level of transverse section D; m, lobes of tissue surrounding the micropyle; sa, sarcotesta; v, vascular bundles; p, plinth. B', section of lagenostome and part of the integument; /,/', flanges; I', waU of micropyle-funnel. E, F, Q, Qnetopsis elUptica; t, tent-pole. F, section of the plumes. G, section through the lagenostome. H, Qnetopsis from Bamsley, York- shire, sMghtly enlarged. I, Pkysostoma elegans; h. hairs. K, L, Mitro- spermum compressum; cf, inner flesh; n, nuoellus and megaspore. L, trans- verse section. M, microspores and (?) male gametes of Physostoma elegans. N, microspore of Physostoma showing part of exine and the internal cells. (A—I, N, M, after OUver; H, Kidston Coll. No. 1255; K, L, after Mrs Arber.). 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 Seward, A. C. (Albert Charles), 1863-1941. Cambridge : University Press
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishercambr, bookyear1898
