. The natural history of plants. Botany. XLIX. THYMEL^EACEtE. 1. AQUILAEIA SEEIES. Aquilaria i (fig. 67-69), the name of which has been given to a family long admitted as distinct, consists of plants with herma- phrodite, regular and monoperianthous flowers. The floral receptacle ^ Aquilaria Fig. 67. Flower (4). Fig. 69. Long. sect, of fruit (f). Fig. 68. Long. sect, of flower. has the form of an obconical or nearly hemispherical sac, on the margin of which are inserted five or six obtuse sepals, imbricate in prefloration. More iatemally, from the throat of the receptacle spring^
. The natural history of plants. Botany. XLIX. THYMEL^EACEtE. 1. AQUILAEIA SEEIES. Aquilaria i (fig. 67-69), the name of which has been given to a family long admitted as distinct, consists of plants with herma- phrodite, regular and monoperianthous flowers. The floral receptacle ^ Aquilaria Fig. 67. Flower (4). Fig. 69. Long. sect, of fruit (f). Fig. 68. Long. sect, of flower. has the form of an obconical or nearly hemispherical sac, on the margin of which are inserted five or six obtuse sepals, imbricate in prefloration. More iatemally, from the throat of the receptacle spring^ ten or twelve stamens, perigynous like the sepals to which five of them, somewhat longer, are superposed, whilst the five or six • others, belonging to another verticil, are alternate. Each is formed of a filament, very short or almost nil, often long* enough for the i Lamk. Diet. i. 49; Suppl. ii. 709; III. t. 356. — DO. l>rodr. ii. 59. — Spach, Suit. A Buffon, xiii. 289.—Turp. Diet. Sc. Nat. Atl. t. 248.—Lindl. Veg. Kitigd. 679, fig. 392.—Endl. (?eM. n. 2111.—H. ;Bn. Payer Fam. Nat. 332; Adansonia, xi. fasc. 10.^—Meissn. DC. Frodr. xiv. 601.—Ophispermum Lour. Fl. Cochinch. (ed. 1790), 280.—Agallochmn. Eomph. Serb. Am- boin. ii. 34, t. 10. 2 This corresponds to what, in all descrip- tions, is considered as the tube of the perianth. It is lined with a very thin glandular layer, covered with hairs; and it is this disk which, thickening at the throat, there separates into altemipetalous tongues described a little far- ther on. ^ Their course can be traced lower down on the internal face of the receptacle in the form of a slightly prominent thread. Their pre- sence here is owing to the late development of the receptacular cup which, at first, is scarcely concave and afterwards enlarges from top to bottom as it becomes more pronounced. * In some species it separates clearly a little after fecundation, following a transverse line, a little above the point whe
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