. The natural history of plants. Botany. UMBELLIFER^. 115 is, on transverse section, circular or slightly compressed parallel to the commissure, flat or slightly concave, and has five prominent primary ridges, equal or nearly so, prismatic or rather obtuse. Each furrow contains one vitta, rarely two, and sometimes also each primary ridge has one finer. Very prominent in the interior of the pericarp, the vittse are moulded on the seed, which becomes longi- tudinally channelled and the face of which is flat or traversed by a Seaeli fig. 115. Long. sedt. of flower (f). Fig. 116. Tran
. The natural history of plants. Botany. UMBELLIFER^. 115 is, on transverse section, circular or slightly compressed parallel to the commissure, flat or slightly concave, and has five prominent primary ridges, equal or nearly so, prismatic or rather obtuse. Each furrow contains one vitta, rarely two, and sometimes also each primary ridge has one finer. Very prominent in the interior of the pericarp, the vittse are moulded on the seed, which becomes longi- tudinally channelled and the face of which is flat or traversed by a Seaeli fig. 115. Long. sedt. of flower (f). Fig. 116. Trans, sect, of fruit i shght vertical furrow. Bubon macedonicum is a Seseli with bristly fruit and fine vittse under its primary ridges, This genus comprises perennial or biennial herbs, with compound umbels. In the true Seseli, the involucre is nil or formed of a small number of bracts, and the bracteoles of the involucels are free or scarcely united at the base. In Libanotis, the involucres, like the involucels, are formed of nume- rous bracts. In Hippomarathroides, another section of the genus, there is no involucre; but the bracts. of the involucels are generally united to a considerable extent in a sort of cupule. Seseli inhabits chiefly the temperate regions of the northern hemisphere of the old world; but it is found, in smaller number, in Australia and North America. We must refer to this genus as sections: Cachrys dbyssinica, of which a genus DiplolopMum has been made, and which has, with a peculiar habit, an involucel with large bracts nearly free and a seed slightly concave within ; Portenschlagia, a Dalmatic plant, I 2. 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 Baillon, Henri Ernest, 1827-1895; Hartog, Marcus Manuel, 1851-. London, L. Reeve & Co.
Size: 2172px × 1150px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, bookyear1871
