0000000000602862
AUTHOR
Cosimo Marcenò
Osservazioni su alcuni aspetti di vegetazione lacustre nella Sicilia centrale
Abstract Some aspects of lacustrine vegetation in the central Sicily.—The Authors give a short comparative survey of some hydrophytic facies observed in two small ponds near Caltanissetta, in the central Sicily. In addition to the classical zonation, typical of such water logged (or: swamp) biotopes, a Potamogeton pectinata-Chara vulgaris association is described. The presence of monospecific facies to be referred to the Lemnetum gibbae (Koch, 1954) Miyaw. et J. Tx., 1960 is ultimately reported.
Crassula campestris(Eckl. & Zeyh.) Endl.(Crassulaceae), a new record for the Italian flora
Abstract Brullo, S., Campo, G., Marceno, C., Romano, S. & Siracusa, G.: Crassula campestris (Eckl. & Zeyh.) Endl. (Crassulaceae), a new record for the Italian flora. — Willdenowia 28: 53–58. 1998. — ISSN 0511-9618. Crassula campestris, a species widespread in S Africa, was discovered in Sicily near Palermo, which is a new record for the Italian flora. A description and illustration of C. campestris is provided and the species is compared with C. tillaea and C. basaltica, the two other Crassula species in Sicily.