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Reproductive morphology of G astroclonium pacificum ( C hampiaceae, R hodymeniales) from J apan
Author(s) -
Suzuki Masahiro,
Hashimoto Tetsuo,
Nozaki Hisayoshi
Publication year - 2012
Publication title -
phycological research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.438
H-Index - 44
eISSN - 1440-1835
pISSN - 1322-0829
DOI - 10.1111/j.1440-1835.2012.00655.x
Subject(s) - biology , botany , morphology (biology) , genus , zoology
Summary Morphological studies were undertaken on G astroclonium pacificum ( E . Y . D awson) C . F . C hang et B . M . X ia ( C hampiaceae, R hodymeniales) from J apan. We describe the details of male reproductive structures, the procarp and early post‐fertilization stages. This species has a solid axis, with both tetrasporangia and polysporangia, spermatangia are cut off from spermatangial parent cells, and a procarp is composed of a 4‐celled carpogonial branch and two 2‐celled auxiliary cell branches. The mature cystocarp lacks a conspicuous ostiole, a characteristic of the genus G astroclonium . The most distinctive characteristic of the species is the tela arachnoidea, which is lacking in other species of G astroclonium .