Author: Blanc-Louvel, C., 1966:
Title: Etude anatomique comparée des tiges et des pétioles d'une ptéridospermée du Carbonifère du genre Lyginopsis Potonié. [Mém. Mus. Hist. Nat., Sér. C, 18.]
Description: Paris 1966. 4to, 26.8cm. Pp. 103, very numerous drawings (some in colour) and microphotos on 158 plates, bibliogr. Privately bound in brown half morocco, marbled boards, backstrip with gilt lettering and decoration, orig. printed wrappers bound in. Very fine.

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