. The natural history of plants. Botany. 480 NATURAL HISTORY OF PLANTS. Myriophyllon verticillafum. only by a vertical filament. But the organs of vegetation in these evergreen plants differ from those of Haloragis. The leaves' are alternate, linear, entire, rather fleshy; and the flowers, arranged in terminal corymbs of cymes, are yellow and rather large compared with those of Haloragis. Three species have been distinguished.^ Myriophyllon^ (fig. 465) has also nearly the organization o{ Halo- ragis; but the flowers are moncecious, or rather, on the same inflorescence, there are female flowers
. The natural history of plants. Botany. 480 NATURAL HISTORY OF PLANTS. Myriophyllon verticillafum. only by a vertical filament. But the organs of vegetation in these evergreen plants differ from those of Haloragis. The leaves' are alternate, linear, entire, rather fleshy; and the flowers, arranged in terminal corymbs of cymes, are yellow and rather large compared with those of Haloragis. Three species have been distinguished.^ Myriophyllon^ (fig. 465) has also nearly the organization o{ Halo- ragis; but the flowers are moncecious, or rather, on the same inflorescence, there are female flowers at the base and male flowers at the summit; but not unfrequently her- maphrodite flowers are intermixed with both. They are dimerous or oftener tetramerous. The petals are imbricate or contorted. The stamens number from two to eight, in con- struction like those of Haloragis^ In the male flowers the gyn^cium is rudimentary or nil, whilst in the female, the petals of which are often smaller (or even nil), the stamens (when present) are sterile, and the gynseeium attains a full development. The ovarian ' cells are four in number, superposed to the petals, surmounted by as many obtuse or plumose stylary branches, often recurved. Each cell contains one or two ovules,^ in direction like those of Haloragis, and the fruit, dry or drapaceous, separates into two or four monospermous cocci. Some fifteen species ^ of this genus''' are distinguished; they. Fig. 465. Long. sect, of flower. ' WMot beoome green or tlaok in drying. ^ Benth. Fl. Austral, ii. 471.âWalp. Ann. i. 293 ; iv. 821 ; vii. 938. ' Vaill. Act. Acad. Par. (1719) t. 2, fig. 3.â Adans. Fam. des PI. ii. 471.âMyriophyttmn L. Gen. n. 1066.âJ. Gen. 18 ; Ann. Mm. iii. 321.â Scu^vKU,Sandb. t. 296.âG-Ektn. 331, t. 68.âLamk. Diet. iv. 189.âTuRp. Diet. Sc. Nat. Ati. t. 217.âDO. Prodr. iii. 68.âSpach, Suit. cL Buffon, iv. 446.âNees, Gen. fasc. 8, t. 13.â Endl. Gen. ju. 6135.â Gen. 676, n. 8.âH. Bn. Payer Fa
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, bookyear1871
