. The natural history of plants. Botany. 22 ^'ATORAL HISTORY OF PLANTS. II. ASTRONIA SEEIES, The flowers of Astronia^ (fig. 30-34) are regular and hermaphrodite, •with a concave cuplike receptacle, in the interior of which the inferior ovary is adnate, above which it is prolonged. In the margin are inserted the perianth and andrcecium. The calyx is gamosepalous Astrojiia Fig. 31. Fruit (}). Fig. 30. Long. sect, of flower. Fig. 32. Long. sect. of fruit. with 4-8 teeth more or less deep. It not unfrequently divides into unequal lobes,^ or separates as a single hood.' The petals, fo
. The natural history of plants. Botany. 22 ^'ATORAL HISTORY OF PLANTS. II. ASTRONIA SEEIES, The flowers of Astronia^ (fig. 30-34) are regular and hermaphrodite, •with a concave cuplike receptacle, in the interior of which the inferior ovary is adnate, above which it is prolonged. In the margin are inserted the perianth and andrcecium. The calyx is gamosepalous Astrojiia Fig. 31. Fruit (}). Fig. 30. Long. sect, of flower. Fig. 32. Long. sect. of fruit. with 4-8 teeth more or less deep. It not unfrequently divides into unequal lobes,^ or separates as a single hood.' The petals, four or five in number, are obtuse, disposed in contorted prefloration in the bud. The stamens, in number double that of the petals, are but shghtly unequal. The short and flat filament is inflexed at the summit, which bears the anther; so that the face of the latter, introrse at anthesis, is turned outwards in prefloration, when it rests on the sides of the style and on the depressed summit of the ovary. The anthers, short and laterally flat, have a dolabriform connective, the base of which is blunt or prolonged in a short and thick projection, and its convex margin, finally interior, bears the two narrow and elongate cells, dehiscing by a longitudinal cleft. The ovary has from two to five alternipetalous cells, surmounted by a cylindrical style with stigmatiferous head nearly entire or divided into as many lobes ' 'R\..; Jiom(1831),626; Smuphia, i. 20, t. 6, 7.—DC. 197.—Natjd. ^««. Sc. Nat. ser. 3, xii. t. 10 ; xviii. 257.—Bndi. Gen. n. 6267.—B. H. Gen. 771, n. 1^9.—H. Bn. Payer Fam. Nat. 357i—Tm. Melast. 151.— Hook. Fl. Ind. ii. 550.—Astronidiim A. Gray, Unit. St. Explor. Exp. Bot. i. 576, t. 12 A, B.^ Naudinia Dcne, ex Tri. Seem. M. Vit. 86 (not Pl. et LiND.). ^ In the section Astronidium. ' In the genus very wrongly distinguished hy under the name of Please note that these images are extracted from scanned page image
Size: 2710px × 922px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, bookyear1871