Notes on some Californian Delesseriaceae (Rhodophyta) : (2) On Cryptopleura violacea (J. AG.) KYLIN and Polyneura latissima (HARV.) KYLIN.

PThe development of reproductive organs of Cryptopleura violacea (J. AGARDH) KYLIN and Polyneura latissima (HARVEY) KYLIN were observed on the basis of specimens collected on November 1980, by Drs. M. Masuda and J. West from Duxbury Reef, California. Consequently, the following characters were confirmed. Cryptopleura violacea: 1) the procarps are formed at random near the tips of the frond, 2) the mature procarp consists of a four-celled carpogonial branch, two sterile groups, and the supporting cell, 3) before fertilization, the mother cells of two groups of sterile cells usually remain undivided; only rarely does the mother cell of the second group once divide, 4) the carposporangia are borne singly on the gonimoblast branches, 5) the tetrasporangial sori are linear along the margins of upper segments, at times on small proliferous bladelets from the margins of segments, 6) the tetrasporangial primordia arise from the inner cortical cells, and 7) the tetrasporangia are tetrahedrally divided. Polyneura latissima: 1) the mature procarp consists of two carpogonial branches, a sterile group, and the supporting cell; abnormally, only one carpogonial branch and a sterile group are produced, 2) a large fusion cell is formed at the base of the gonimoblast, 3) the carposporangia are borne in chains, 4) the tetrasporangial sori are scattered over entire blade, 5) the tetrasporangial primordia arise from the inner cortical cells instead of primary cells, and 6) the tetrasporangia are tetrahedrally divided.departmental bulletin pape