. The natural history of plants. Botany. UMBELLIFEBJS. 103 hjrium, from the Cape, has the same hollow with an indistinct intra- marginal circle. Opopanax orientalis has been rightly united to Maldbaila; but, by the intermediation of 0. persicum, it is inseparable from 0. chironium, differing only by its numerous vittse, and from Stenotcmia, which has also two or three vittse in each furrow, and is otherwise very near Pastinaca and Heradeum} Johrenia is scarcely more distinct from the Peueedans. The fruit is not so thin, and the sube- rose margm itself is thicker; ^ * its general form is more e
. The natural history of plants. Botany. UMBELLIFEBJS. 103 hjrium, from the Cape, has the same hollow with an indistinct intra- marginal circle. Opopanax orientalis has been rightly united to Maldbaila; but, by the intermediation of 0. persicum, it is inseparable from 0. chironium, differing only by its numerous vittse, and from Stenotcmia, which has also two or three vittse in each furrow, and is otherwise very near Pastinaca and Heradeum} Johrenia is scarcely more distinct from the Peueedans. The fruit is not so thin, and the sube- rose margm itself is thicker; ^ * its general form is more ellip- tical, and the surface of the ovary nearly glabrous, whilst Duavsia has a more orbicular fruit, and the surface of the ovary is hairy. The primary ridges are suberose, tolerably thick, but on the whole not prominent. They are peren- nial herbs of western and temperate Asia. They also connect the Peueedans with Tordylium (fig. 95, 96), which has visible sepals, rayed petals, and a fruit often orbicular, coin-like, very compressed, with margin much thickened, whitish, nearly always rugose, more prominent than the primary ridges, which are scarcely visible, , In T. Aucheri, of which the genus Oimosciadium has been made, the rugosity is more marked, and linear traces of the dorsal secondary nervures are perceptible. There are species in which the vittse are solitary in each furrow, and others in which they are multiple. The latter is the case in Polytcenia, which has a fruit with very thick margin and often longer relatively to its size; it is from North America. In Condylocarpus, the vittse are also numerous, very close, and the central coat of the fruit is very thin. In Hasselquisfda and Ainsworthia, there are fruits near. 95. Fruit (?). 1 The genus Symphyoloma is distinguished from Jleradevm, of which it has otherwise the fruit with marginal wings a little thicker, by- two somewhat remarkable characters: the ab- sence of vittas and of carpophors ; so that the mericarps (on
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, bookyear1871
