Archive image from page 52 of Dansk botanisk arkiv (1913-1981). Dansk botanisk arkiv danskbotaniskark03dans Year: 1913-1981 F. Børgesen: Rhodophyceæ of the Danish W. Indies. 45 Cellulæ cylindricæ in inferiori parte filorum ca. 11// latæ 40// longæ, in superiori 7—8// latæ 40 /j. longæ, chromatophorum parietale, pyrenoide laterali, instructum continentes. Sporangia sessilia, raro pedicellata in parte basali ramorum uniseriata, monospora aut raro hispora, ovalia, ca. 18—20/i longa et 9—12« lata. The basal part of this species is immersed in the mucilage and chalk incrustation of the host plant
Archive image from page 52 of Dansk botanisk arkiv (1913-1981). Dansk botanisk arkiv danskbotaniskark03dans Year: 1913-1981 F. Børgesen: Rhodophyceæ of the Danish W. Indies. 45 Cellulæ cylindricæ in inferiori parte filorum ca. 11// latæ 40// longæ, in superiori 7—8// latæ 40 /j. longæ, chromatophorum parietale, pyrenoide laterali, instructum continentes. Sporangia sessilia, raro pedicellata in parte basali ramorum uniseriata, monospora aut raro hispora, ovalia, ca. 18—20/i longa et 9—12« lata. The basal part of this species is immersed in the mucilage and chalk incrustation of the host plant [Liagora elongata). On germination the spore does not divide and remains throughout undivided ; its diameter is about 16//. After the germination it produces endophytic fdaments from its lower side; these creep downwards fixing themselves to the assi- milating filaments of the host plant (Fig. 42 c). From the upper end an erect (or sometimes two) is given off (Fig. 42 a) ; this is at first undivided but after having grown so that it is quite free of the Liagora tissue it becomes branched. The ramification is some- what slight. The branches are given off at an acute angle and the branches themselves are ramified in the same way giving the plant a cluster-like appearance. Towards the summit the branches taper into hair-like filaments the cells of which are long and nearly colourless and soon die away at the end (Fig. 42 a). The cells in the filaments are about 10—11/i thick and about 27—40// long; near the base the filaments are a little thinner, about 8 //; in the hairlike ends the cells taper to about 7—8,«. The chromatophore (Fig. 43) is parietal, often with elongations towards the wall of the cell and it encloses a lateral pyrenoid. The sporangia (Figs. 42 «, b, Fig. 43) are sessile, oval-ovate. They are about 9—12 ß broad and 18—20 a long. Monosporangia mostly occur, but in a few specimens some were divided by a transverse wall into two
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Keywords: 1910, 1913-1981, archive, book, bookauthor, bookdecade, bookpublisher, booksponsor, booksubject, bookyear, dansk_botanisk_forening, drawing, historical, history, illustration, image, kbenhavn_dansk_botanisk_forening, page, picture, plants, plants_denmark, print, reference, the_luesther_t_mertz_library_the_new_york_botanical_, vintage, zimmermann_a_albrecht_b_1860
