. Bulletin of the British Museum (Natural History) Geology Supplement. 28 CALCAREOUS ALGAE OF THE MIDDLE EAST. Fig. 3. Reconstruction (after Morellet 1918) of Clypeina. (calcified) whorls above, terminal tuft at top. Sterile whorls below, fertile X 30 approx. they had calcified evidence of the sterile portion of the plant, of the lower, atypical fertile whorls, of the terminal structure, and of the serial association of the fertile whorls. Pia (1927) placed Clypeina in the tribe Diploporeae, and he was followed in this attribution by Emberger (1944) and Kamptner (1958). The Morellets (1913 : 3
. Bulletin of the British Museum (Natural History) Geology Supplement. 28 CALCAREOUS ALGAE OF THE MIDDLE EAST. Fig. 3. Reconstruction (after Morellet 1918) of Clypeina. (calcified) whorls above, terminal tuft at top. Sterile whorls below, fertile X 30 approx. they had calcified evidence of the sterile portion of the plant, of the lower, atypical fertile whorls, of the terminal structure, and of the serial association of the fertile whorls. Pia (1927) placed Clypeina in the tribe Diploporeae, and he was followed in this attribution by Emberger (1944) and Kamptner (1958). The Morellets (1913 : 31 ; 1918 : 102), students of Tertiary and Recent algae, grouped Clypeina under Acet- abulariae with Halicoryne, Acetabularia and Acicularia, three genera still surviving, and all showing separate sterile and fertile whorls and of somewhat similar mor- phology. Rezak (1957) summarizing this, agreed with the Morellets in their attribu- tion. Clypeina is now placed in a new tribe Clypeineae, for its geological appearance. 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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