. The natural history of plants. Botany. 363 NATURAL HISTORY OF PLANTS. merous flower of Paullinia and Bchmidelia, simple and opposite leaves, and a capsular, coriaceous, vesicular, lobate, loculicidal fruit, whose exarillate seeds contain a bent embryo with folded cotyledons. Bridgesia, a shrub from the same country, has very nearly the same aspect, alternate leaves, entire or trilobate, dentate or notched, the same flowers and the same seeds, but the capsular fruit is trilobate, almost membranous, and each of the cells, surmounted by a vertical dorsal ridge, is separated at maturity from the
. The natural history of plants. Botany. 363 NATURAL HISTORY OF PLANTS. merous flower of Paullinia and Bchmidelia, simple and opposite leaves, and a capsular, coriaceous, vesicular, lobate, loculicidal fruit, whose exarillate seeds contain a bent embryo with folded cotyledons. Bridgesia, a shrub from the same country, has very nearly the same aspect, alternate leaves, entire or trilobate, dentate or notched, the same flowers and the same seeds, but the capsular fruit is trilobate, almost membranous, and each of the cells, surmounted by a vertical dorsal ridge, is separated at maturity from the central columella. In Urvillea and Serjania, consisting of climbing shrubs from tro- pical America, are again found the sarmentose, volubile stems oiPaul- linea, with the alternate leaves and inflorescence usually provided with two tendrils at the base, the irregular flowers with flve sepals (two of which may be united to a variable height), four petals and the seeds with a but slightly developed aril; but the fruit is formed of three samaras separated from the central columella, like the lobes of that of Bridgesia. In the Urvilleas, plants cardmpermummucacahum. ^-^j^ trifoliate Icavos, the scminiferous cavity occupies the middle of the height of the samaras, whilst in Serjania whose leaves are also frequently pinnate the seed is at the top of the samara, the whole of whose inferior portion is prolonged in a wing resembling that of the Maple turned upside down. The Tou- Kg. 38i. Fruit Ucitts, trees, not climbing, from central tropical America, with alternate and imparipinnate leaves, have the irregular flower of Serjania and Urvillea, with a fruit divided into three samaroid capsules, each opening in halves after being detached from the columella; the seminiferous cavity occupies the upper part. It is inferior, on the contrary, in Pseudatalaya, an Australian genus which, having the irregular flower, with four petals, of Pancovia, and the fruit of Atalaya and Thouinia (that is
Size: 1500px × 1666px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, bookyear1871
