Anim petteri, Schott

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1980, Flora Europaea. Volume 5. Alismataceae to Orchidaceae (Monocotyledones), Cambridge: Cambridge University Press : 270

5. A. petteri Schott , Syn. Aroid. 12 (1856)

( A. nigrum Schott ).

Plant 25-50 cm. Tuber 5-7 cm in diameter, vertical, subglobose. Leaves appearing in autumn, dull green; lamina 10-20 cm, hastate to hastate-sagittate; petiole 20-30 cm. Peduncle c. 5 cm. Spathe 15-20 cm, purplish-black. Spadix much shorter than spathe; appendix stout, dark purplish-grey. Sterile flowers present above and below the male. Flowering in spring. Stony ground. • W. Jugoslavia, N. Greece. Gr Ju.

A plant from S.E. Italy described as A. nigrum var. apulum Carano is probably a hybrid between 1(a) and 3(b). It has 2n = 56.

A. longispathum Reichenb. , Icon. FI. Germ. 7: 5 (1845) ( A. orientale subsp. longispathum (Reichenb.) Engler ), described from a single gathering from W. Jugoslavia, resembles 5 in some features and 1 in others, but differs from both in the narrow, long-acuminate lamina of the spathe. Assessment of its taxonomic status must await its rediscovery.