. The natural history of plants. Botany. LEGUMINOSM-G^SALFINIE^. 117 (figs. 92-95). It is completely outside the two lateral sepals (4 and 3), of which. 4 is overlapped on both sides, while 3 overlaps 6 on the other ; this last petal is posterior, like 2, which, overlaps on both sides. Sepal 2 is a little larger than 1, while 4 and 5 are much the thinnest and largest of all.' The corolla consists of five alternating petals, which may be of nearly equal sizes or else Cassia Fia. 93. Flower (f). Fi&. 94. Diagram. Fig. 95. Longitudinal section of fruit. unequal: the posterior, te
. The natural history of plants. Botany. LEGUMINOSM-G^SALFINIE^. 117 (figs. 92-95). It is completely outside the two lateral sepals (4 and 3), of which. 4 is overlapped on both sides, while 3 overlaps 6 on the other ; this last petal is posterior, like 2, which, overlaps on both sides. Sepal 2 is a little larger than 1, while 4 and 5 are much the thinnest and largest of all.' The corolla consists of five alternating petals, which may be of nearly equal sizes or else Cassia Fia. 93. Flower (f). Fi&. 94. Diagram. Fig. 95. Longitudinal section of fruit. unequal: the posterior, termed the vexillary petal, is quite in- ternal in the bud, usually most dissimilar to the rest: while the enveloping lateral petals are symmetrical to one another ; they are overlapped by the anterior pair, of which again one overlaps the other along the anterior edge (fig. 94). The androceum consists of two quinary whorls of stamens, five superposed to the sepals, five to the petals. Of the former set the three superposed to the anterior sepals are fertile and usually the largest of all; of the latter the four anterior, though much smaller, are also fertile. The remaining three are represented by little membranous sterile scales. Of the seven fertile stamens each possesses a free hypogynous filament, which is longer and more curved as it is more anterior; and a basifixed tetragonal two-celled anther, at first divided into four locelli, and opening at the apex, which forms a beak of variable form, by two short clefts that unite on top, so as to mark out a little introrse triangular flap with its base downwards.^ The ovary, supported on a foot of variable length ' On the floral symmetry of Cassia, see H. Bit., in Adamoma, \\. 212. " Tlie pollen consists of elongated grains in three, or more rarely one or two furrows. H. MoHL (Ana. So. Nat., s^r. 2, iii. 342,) dis- tinguishes these species of the genus Cassia, where the grains when moistened become spheres with three smooth b
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, bookyear1871
