. Fossil plants : for students of botany and geology . Paleobotany. xxxvn] WILLIAMSONIA 447 one of the examples assigned by Feistmantel to W. gigas are similar anatomically to those of Williamsonia scotica and are clothed with simple hairs. The important point is the very close correspondence between the Indian and English types of Williamsonia, as regards flowers, fronds, and stems. British Specimens. Williamsonia Carruthersi Seward. This species was founded od several specimens from Wealden beds on the Sussex coast none of which afford information as to. Pig. 559. Williamsonia Carruthersi. A
. Fossil plants : for students of botany and geology . Paleobotany. xxxvn] WILLIAMSONIA 447 one of the examples assigned by Feistmantel to W. gigas are similar anatomically to those of Williamsonia scotica and are clothed with simple hairs. The important point is the very close correspondence between the Indian and English types of Williamsonia, as regards flowers, fronds, and stems. British Specimens. Williamsonia Carruthersi Seward. This species was founded od several specimens from Wealden beds on the Sussex coast none of which afford information as to. Pig. 559. Williamsonia Carruthersi. A, unexpanded flower. A', the reticulate lamellae projecting from the face of a bract. B, the basal portion of a larger and expanded flower showing the impressions of the interseminal scales and the base of the receptacle. (British Museum, A, V. 3177; B, V. 3201.) anatomical structure^. It is not improbable that more than one species is represented. The ovulate cone, 6 cm. long, is surrounded by several linear bracts (fig. 559, A) and in shape resembles Bennet- tites Morierei Lign.; the bracts are broken across near the base, as is frequently the case in Williamsonia gigas, exposing an annular zone formed by persistent interseminal scales. From the inner 1 Seward (95) A. p. 157, Pis. x., 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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