. Bulletin of the British Museum (Natural History) Botany. M. J. CANNON & J. F. M. CANNON. Fig. 1 Scanning electron micrographs of pollen types. Scale lines 20 [lm. 1. Acanthocalyx-type, A. nepalensis (Polunin, Sykes & Williams 4536), slightly oblique equatorial view showing a colpate ectoaperture. 2. Morma-type, M. persica (Davis, Dodds & Cetik 19068), slightly oblique polar view showing verrucate ornamentation at equator. 3. Cryptothladia-type, C. chinensis (Licent 4548), equatorial view showing domed apertural protru- sions. 4. Mon«a-type, M. coulteriana (Vassiljeva 5487), equat
. Bulletin of the British Museum (Natural History) Botany. M. J. CANNON & J. F. M. CANNON. Fig. 1 Scanning electron micrographs of pollen types. Scale lines 20 [lm. 1. Acanthocalyx-type, A. nepalensis (Polunin, Sykes & Williams 4536), slightly oblique equatorial view showing a colpate ectoaperture. 2. Morma-type, M. persica (Davis, Dodds & Cetik 19068), slightly oblique polar view showing verrucate ornamentation at equator. 3. Cryptothladia-type, C. chinensis (Licent 4548), equatorial view showing domed apertural protru- sions. 4. Mon«a-type, M. coulteriana (Vassiljeva 5487), equatorial view showing funnel shaped apertural 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 British Museum (Natural History). London : BM(NH)
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