Marine Plants of Nha Trang — Dawson 
429 
Fig. 40. a, Lithophyllum samoense: A small portion of a crust in vertical section showing a tetrasporic conceptacle, 
X 120. b, Lithoporella pacifica: A portion of a plant seen from the superior surface showing a conceptacle, the 
zonation of heavier and lighter calcification, and the relative thickness of the broken edge, X 4. c, Amphiroa 
foltacea: A branched upper portion of a clump, X 2. d, Jania longiarthra: An upper portion of a typical plant, 
X 14. e, Jania ungulata f. brevior: An upper portion of a plant to show branching and ungulate tips, X 16./, 
Jania decussato-dichotoma: A small part of a plant, X 9. g,h, Amphiroa fragilissima: g, A portion of a loosely branched 
plant, X 3; a portion of a coarser plant with abundant conceptacles and less conspicuous swelling at the nodes, 
X 1.5. 
