. Fossil plants : for students of botany and geology . Paleobotany. xxx] TRIGOHrOCARPTTS 121 more lacunar tissue with a palisade-like hypoderm: the sclerotesta consists of thick cells which interlace and form an efficient pro- tective sheU. Both the sarcotesta and sclerotesta are continued into the apical region as the wall of the long micropyle, the sarcotesta being prolonged beyond the sclerotesta at the apex of. Fig. 426. Trigomocarpiia Parkinaoni. A, longitudinal section; Sa, 8c, if, sarco • testa, sclerotesta, inner flesh; mi, micropyle; Pc, poUen-ohamber; v, vascular bundles; m, megaspor
. Fossil plants : for students of botany and geology . Paleobotany. xxx] TRIGOHrOCARPTTS 121 more lacunar tissue with a palisade-like hypoderm: the sclerotesta consists of thick cells which interlace and form an efficient pro- tective sheU. Both the sarcotesta and sclerotesta are continued into the apical region as the wall of the long micropyle, the sarcotesta being prolonged beyond the sclerotesta at the apex of. Fig. 426. Trigomocarpiia Parkinaoni. A, longitudinal section; Sa, 8c, if, sarco • testa, sclerotesta, inner flesh; mi, micropyle; Pc, poUen-ohamber; v, vascular bundles; m, megaspore and prothaUus; t, tracheal disc; nt, tracheids in the nuceUus. B, transverse section of the upper region showing the sarcotesta, sclerotesta (black) and the micropyle. C, transverse section of T. Parhinsoni. D, transverse section of Trigonocarpus shorensis. (A, C, after Scott; B, after Wild; D, after Salisbury.). 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
