FIGURE 6 in Morphological and molecular systematic investigation of Laurencia karachiana sp. nov. (Ceramiales, Rhodophyta) from Karachi, Pakistan

FIGURE 6. Laurencia karachiana Bibi, Cassano & Rasheed sp. nov. (A) Female branches. (B) Detail of the branchlets showing cystocarps disposed subapically. (C) Longitudinal section through female branchlet with prominent cystocarp without protuberant ostiole. (D) Procarp-bearing segment with five pericentral cells, the fifth becoming the supporting cell (SU) of carpogonial branch; central cell of procarp-bearing segment (c), lateral sterile group (ls). (E) Development of young procarp; basal cell of trichoblast (bt) which supports the procarp; central cell of procarp-bearing segment (c) with five pericentral cells. (F) Procarp before fertilization with four-celled carpogonial branch (cb), carpogonium (cg), trichogyne (tr, unfocused), supporting cell (SU), lateral sterile group (ls), basal sterile group (bs). Scale bar: A, 2 mm; B, 1 mm; C, 200 μm; D-F, 10 mm.