. Bulletin of the Natural Histort Museum. Geology series. . Fig. 26 A-F Sciadopitynides greeboana sp. nov. A, apical portions of leaves from Galley Hill. East Sussex, left to right (holotype). (top row), V,64564 (bottom row). , V,64567, all x ; B, upper half of leaf showing maceration-resistant resin strands. x 15; C, D, apical portions of leaves from debris partings at Galley Hill, both x 15. C, with typically broken leaf apex. ; D, with less common intact leaf apex. ; E, lower portion of leaf showing taperin
. Bulletin of the Natural Histort Museum. Geology series. . Fig. 26 A-F Sciadopitynides greeboana sp. nov. A, apical portions of leaves from Galley Hill. East Sussex, left to right (holotype). (top row), V,64564 (bottom row). , V,64567, all x ; B, upper half of leaf showing maceration-resistant resin strands. x 15; C, D, apical portions of leaves from debris partings at Galley Hill, both x 15. C, with typically broken leaf apex. ; D, with less common intact leaf apex. ; E, lower portion of leaf showing tapering, untwisted, extreme base of leaf. 15; F, central stomatal band of holotype (Fig. 26A, top row. middle) showing longitudinally arranged stomata with prominent subsidiary cells. x 100. files, not disturbed by stomata; usually four-sided, elongate, end walls transverse or oblique, generally 20-150 |jm long x 8-19 |am wide; anticlinal walls straight, 1—4 \xm wide; median longitudinal ridge over outside of one or several cells in a file, alternatively, ridge broken up into a row of small solid circular thickenings. Hypodermis absent. Stomata longitudinally aligned and elongated, arranged in longitudinal files; density 80-125 per mm- (average 92 per mm-). Stomatal pit spindle-shaped, rim smooth; flanked on each side by one, or rarely two, subsidiary cells with domed or thickened surface walls; one subsidiary cell at each pole, indistinct from ordinary epidermal cells. Encircling cells frequently present. Guard cells slightly sunken; pair of dorsal plates 34—57 |jm long x 27-50 yon wide, thickly cutinized, thinning slightly towards aperture, inner anticlinal walls shallowly cutinized; polar appendages present but variable in development; ventral plates very occasionally cutinized adjacent to aperture. Name. After Greebo. Nanny Ogg's cat in the Discworld novels of Terry Pratchett. Holotype & type locality. Fig. 26A (middle top row). F. A dispersed
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Keywords: ., bhlconsortium, bookcollectionbiodiversity, bookcontributornatura
