. Dansk botanisk arkiv. Plants; Plants -- Denmark. F. Børgesen: List of species. 423. Fig. 404. Chætomorpha brachy- gona Harv. Two forms. Com- pare text. (About 200:1). after division only half their length. The zoosporangia, have nearly the same shape, though often a little swelled in the middle. In this form the upper end of the basal cell is about 40 // broad; the vegetative part of the filaments is 65 // broad, and the sporangia 70 a broad. Parts of a very similar form is figured in Fig. 403 rf, e. The vegetative cells in this plant reached a breadth of about 50 //. Finally in Fig. 404 a,
. Dansk botanisk arkiv. Plants; Plants -- Denmark. F. Børgesen: List of species. 423. Fig. 404. Chætomorpha brachy- gona Harv. Two forms. Com- pare text. (About 200:1). after division only half their length. The zoosporangia, have nearly the same shape, though often a little swelled in the middle. In this form the upper end of the basal cell is about 40 // broad; the vegetative part of the filaments is 65 // broad, and the sporangia 70 a broad. Parts of a very similar form is figured in Fig. 403 rf, e. The vegetative cells in this plant reached a breadth of about 50 //. Finally in Fig. 404 a, b and c, d two more narrow forms are figured. Their vegetative cells vary in thick- ness from 35—45 /y. With the excep- tion of those quite close to the base the cells in these forms are very short, often reaching not half their breadth. The specimens here described and figured are only to be considered as samples. Between them specimens may be found connecting them all gradually as to shape and size of the cells. These forms were all growing together in an ex- posed locality and found in company with Enteromorpha plumosa, Pylaiella jiilvescens and the below mentioned Rhizocloniums. St. Jan: Christiansfort on steep rocks facing the open sea at about high water mark or a little above. 22. Chætomorpha gracilis Kütz. Besidesthe detached form Fig. 405. Chætomorpha gracilis Kütz. mentioned in vol. I, n. 19 I a, b, c, parts of a filament, d, base of r j ^ r j another plant. (About 150:1.) have moreover found a fixed. 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 Dansk botanisk forening. Kbenhavn : Dansk botanisk forening
Size: 1370px × 1824px
Photo credit: © Paul Fearn / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectio, bookdecade1910, booksubjectplants
