. The natural history of plants. Botany. LXlIl. RUBIACE^. I. MADDEE SEEIES. The name of this family is derived from that,of the Madder' (fig. 223-230) which has generally hermaphrodite, more rarely uni- -»»*'« tinctorum. sexual, pentamerous and mono- petalous lowers. The receptacle, in such a species as Ruhia tinc- torum, is in the form of a deep pouch, nearly globular, slightly compressed laterally. This pouch encloses the ovary, and at its margin is inserted the corolla.^ The latter is gamopetalous, regular, with a short wide tube, and limb deeply divided into five valvate lobes, one of whic
. The natural history of plants. Botany. LXlIl. RUBIACE^. I. MADDEE SEEIES. The name of this family is derived from that,of the Madder' (fig. 223-230) which has generally hermaphrodite, more rarely uni- -»»*'« tinctorum. sexual, pentamerous and mono- petalous lowers. The receptacle, in such a species as Ruhia tinc- torum, is in the form of a deep pouch, nearly globular, slightly compressed laterally. This pouch encloses the ovary, and at its margin is inserted the corolla.^ The latter is gamopetalous, regular, with a short wide tube, and limb deeply divided into five valvate lobes, one of which is anterior, two are lateral and two posterior. On the tube are inserted five altemipetalous stamens, formed each of a fila- ment and a bilocular introrse anther dehiscing by two longi- tudinal clefts.' The ovary, in- ferior, is surmounted by an epigynous disk, encircling the base of a. Fig. 223. Branch (J). ' Suiia T. Insl. 113, t. 37.—L. Gen. n. 127.— J. Gen. 197.—Lamk. Diet. ii. 604; Suppl. ii. 705 ; III. t. 60.—Gjertn. Fruct. iii. t. 195.— DC. Frodr. iv. 588 (part).—A. JRiCH. Monogr. Bubiac. 52, t. 1 (ex Mdin. Soc. ^Sist. Nat. Par. v.).—Spaoh, Suit, a Buffon, viii. 470.—Enbl. Gen. II. 3101.—Payer, Organog. 633, t. 129.— B. H. Gen. ii. 149, n. 329.—Hook. Fl. Ind. iii. 202.—Aparine Adans. Fain, des PI. ii. 144 (incl.: Callipeltis Stev. Didymoea Hook. f. Galium, T. Merioarpcea ' Endl. Valantia L.). VOL. VII. ' Around the hase ia a small horder usually described as a limh of the calyx, entire or " ob- ; It is then supposed that the greater part of the calyx envelopes the ovary to which it is " adherent," and it is called the " calycinal tube ;" expressions which indicate hypotheses not justified by facts. The border referred to is that of the receptacular orifice. <* In Rubia the pollen has more than three folds. In E. tinctorum, there are six or seven, according to H. Mohl {Ann. Se. Nat. ser. 2,
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