. British marine algae : being a popular account of the seaweeds of Great Britain, their collection and preservation. Marine algae. 224 ElllTISH MARINE Harvey. C. arbuscula I have taken in Scotland only ; C granulatum I have found in Torbay, and at Plymouth frequently, but on no northern shore. The branches of this shrub-like plant are very closely set, but are spread out in all directions ; and these throw out a second and third series of lesser branches, all of which terminate in little fan-shaped branched ramuli, the tips of which are forked, the outline being somewhat arched. Tetras
. British marine algae : being a popular account of the seaweeds of Great Britain, their collection and preservation. Marine algae. 224 ElllTISH MARINE Harvey. C. arbuscula I have taken in Scotland only ; C granulatum I have found in Torbay, and at Plymouth frequently, but on no northern shore. The branches of this shrub-like plant are very closely set, but are spread out in all directions ; and these throw out a second and third series of lesser branches, all of which terminate in little fan-shaped branched ramuli, the tips of which are forked, the outline being somewhat arched. Tetraspores are produced singly, in or near the base of the forked ramuli; as seen in the magnified branchlet at c, Fig. 202, bilobed-favellge are placed in the angles of the branches. The colour is a purplish red ; but all my specimens in drying became a most beautiful sepia, or sometimes Vandyke brown. C. corymboswm is one of the rarities, as well as one of the most delicate of this genus ; its general appearance is represented at. Fig. 203. Callithamnion corymboswm. Fig. 203. The terminal branchlets are fastigiate or level-topped at the tips, which are of the utmost tenuity, and are crowded together to such an extent, as to appear like numbers of little red corymbs crowning the branches, whence the specific name. The branching of this species is often very irregular, but the great length of the joints in the stem and branches, and the bifid tips of its corymbose terminal branchlets, are characters so distinct that it cannot very easily be mistaken for any other species. The tetraspores are attached to the sides of the joints just below the forkings of the terminal ramuli, as represented at a, Fig. 204, and the favcllae, which are bi-lobed and of large size, are produced in the axils of the branchlets, immediately under the little rosy-red coi-ymbs, as seen at b, Fig. 204. The substance is so soft and gelatinous that the plant adheres perfectly to paper when drying. A most lovely,
Size: 1729px × 1446px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, bookpubl, booksubjectmarinealgae
