. Dansk botanisk arkiv. Plants; Plants -- Denmark. F. Børgesen: Rhodophyceæ of the Danish W. Indies. 79. Fig. 84. Liagora rnega- gyna nov. spec. Transverse section of medullary layer. (About 60:]). merits are about 19—20// thick and 30—35 ^u long. The whole fascicle reaches a length of up to 500—600//. Peculiar hairlike organs arise everywhere in the filaments (comp. Fig. 83 a, c, d). These are short, con- sisting of a single cell only, or longer, some- times ramified, and composed of cyhndrical cells whose diameter is 5—8«. The upper- most cells in these filaments are almost en- tirely filled


. Dansk botanisk arkiv. Plants; Plants -- Denmark. F. Børgesen: Rhodophyceæ of the Danish W. Indies. 79. Fig. 84. Liagora rnega- gyna nov. spec. Transverse section of medullary layer. (About 60:]). merits are about 19—20// thick and 30—35 ^u long. The whole fascicle reaches a length of up to 500—600//. Peculiar hairlike organs arise everywhere in the filaments (comp. Fig. 83 a, c, d). These are short, con- sisting of a single cell only, or longer, some- times ramified, and composed of cyhndrical cells whose diameter is 5—8«. The upper- most cells in these filaments are almost en- tirely filled with protoplasm ; whatever the reason may be the whole contents are often evacuated from the cells and found mostly as a spherical but sometimes also more irre- gularly shaped body at the end of the fila- ments (Fig. 83 c). Something quite similar often takes place also in the cells at the summit of the assimi- lating filaments ; here also now and then the whole contents of the cells are emptied through a hole in the top of the cell; remnants of a membrane originating from such emp- tied cells are often found in the end of the assimila- ting filaments (Fig. 83 e). Here also short hairs are often found (Fig. 83 /, g), reminding one of those which RosENViNGE has found in Nemalion. They are entirely filled with protoplasm; when they die remnants of the walls remain at the end of the cell. The central filaments consist of long subcylindrical barrelshaped cells, whose . .^. .... Liagora niegagyna nov. spec. diameter reaches a length Development of the cystocarp (comp. of 100—160// or even more the text), (a, bM 160: 1, c about ^^^^p_ ^^^ g3 ^^ ^^y ^j^^^g and between these thicker filaments smaller ones run irregularly in the mucilage ; they ori- ginate from the basal cell in the peripheral filaments and consist of long cylindric cells about 150/« long and 11// broad. Fig. 84 shows a transverse section of the medullary Please note that these images are extracte


Size: 1590px × 1572px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookcollectio, bookdecade1910, booksubjectplants