Arenaria lithops, Heywood ex McNeill

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1964, Flora Europaea - Volume 1. Lycopodiaceae to Platanaceae, Cambridge University Press : 118

7. A. lithops Heywood ex McNeill , Notes Roy. Bot. Gard. Edinb. 24: 113 (1962)

( A. pulvinata Huter , non Edgew.).

Perennial, sparsely covered with very short crisped hairs, forming very compact, hard cushions 5-80 cm in diameter which show growth- rings inside; stems usually completely covered by the densely imbricate leaves. Leaves 1-1-5 mm, ovate-deltate, obtuse, recurved. Flowers 4-merous, solitary, terminal, sessile, not more than half-exserted from the cushion. Sepals c. 2-5 mm, ovatelanceolate, obtuse; petals c. 1 | times as long as sepals. Rocky mountain slopes. • S.E. Spain. Hs.