. The British Charophyta. Characeae. 42 BRITISH CHAROPHYTA. and rudimentary branchlets are produced, there are a large number of starch-bearing cells similar to those of -which bulbils are composed. The thickened stem-. Fio. 15.—Symmetrical star-like stem-bulbils of Nitellopsis oitusa. i. View of upper surface showing pro-embryonic branches and rhizoids originating at the base of metamorphosed branchlets (after Giesenhagen). ii, iii, iv. Various forms of "stars" (ii after H. Groves ; iii, iv after Migula). ( y 7.) nodes give rise to numerous rhizoids, and often to accessory pro-embry
. The British Charophyta. Characeae. 42 BRITISH CHAROPHYTA. and rudimentary branchlets are produced, there are a large number of starch-bearing cells similar to those of -which bulbils are composed. The thickened stem-. Fio. 15.—Symmetrical star-like stem-bulbils of Nitellopsis oitusa. i. View of upper surface showing pro-embryonic branches and rhizoids originating at the base of metamorphosed branchlets (after Giesenhagen). ii, iii, iv. Various forms of "stars" (ii after H. Groves ; iii, iv after Migula). ( y 7.) nodes give rise to numerous rhizoids, and often to accessory pro-embryos and embryonic branches. The third type of bulbil, that of a symmetrical star-like form, has been found in Nitellopsis Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Groves, James; Bullock-Webster, George Russell, 1858- joint author. London, The Ray society
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