Antenna distally incrassate in both sexes and, in female, strongly clavate. |
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The commonest type of trichome is uniseriate, two to four-celled, with a clavate or subclavate terminal cell. |
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Labellar papillae show greater diversity, and may be conical, obpyriform, villiform, fusiform or clavate. |
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Apart from size, the two specimens agree in all respects with the possible exception of the disposition of the clavate laterals. |
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Included in both these genera were short, rectilinear borings with clavate ends and elongate, curvilinear borings with or without swollen terminations. |
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Appressoria are few in number, 6.5-11 x 4.5-7.5 µm in size, clavate to circular and light to dark-brown. |
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Thalli had articulate fronds, clavate branches, and extreme branch constriction. |
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The short gynostemium is clavate, somewhat arcuate, with oblong-obovate projections with fringed margins. |
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All were united in having a characteristically clavate glabellar shape. |
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A new ichnospecies of Gastrochaenolites Leymerie from the Pleistocene Port Morant Formation of southeast Jamaica and the taphonomy of calcareous linings in clavate borings. |
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