PENTANDRIA— DIGYNIA. Umbellat.t:. S3 



Stam. Filaments 5, equal or unequal, according as tlie petals 

 are so, thread -shaped or awl-shaped, simple, spreading. 

 Anthers roundish or oblong, incumbent, of 2 close pa- 

 rallel lobes, without any ajipendage, and 2 cells opening 

 lenijthwise. 



Pistil. Germen inferior, usually simple, rarely a double 

 globe ; more or less compressed, either laterally or trans- 

 versely; the surface either even, or striated longitudinally, 

 smooth, hairy, or prickly. Styles 2, each proceeding from 

 the inner side of a large, tumid, ovate, globular, pyrami- 

 dal, or depressed, permanent base, of a glandular ap- 

 pearance, very seldom wanting; the styles themselves are 

 usually cylinclrical, short and erect in the flower, but 

 subsequently elongated, either spreading or strongly re- 

 flexed, forming a pair of hooks to the fruit ; in a few 

 genera they are at every period long and capillai'y, in 

 some degree spreading, almost invariably permanent, 

 and hardened as the fruit ripens. Stigmas either simple, 

 obtuse, or capitate, never divided. 



Floral Receptacle^ or Disk, a glandular ring, under the 

 tumid bases of the styles, and mosdy united therewith, 

 but differing in substance, and often in duration, some- 

 times dilated into a thin undulated margin or ruffle, in 

 general somewhat enlarged as the fruit ripens, sometimes 

 withering, sometimes entirely wanting, finally separated 

 into two parts, one of which accompanies each seed. 



Fruit either ovate, roundish, elliptical, cylindrical, or ob- 

 long, tumid and solid, or thin and chaffy ; compressed 

 more or less, either laterally, that is, contrary to the por- 

 tions of the Jloral receptacle; or transversely, parallel 

 thereto; and finally separating into 2 naked seeds, each 

 suspended by one branch of a capillary, upright, divided 

 receptacle. 



Seeds each of the shape of half the fniit ; their outer skin 

 various in substance, form, and surface, giving the cha- 

 racter of the fruit; the inner thin, membranous and uni- 

 form; each seed crowned with one half of the Jloral recep- 

 tacle, as vvell as with a part of the calyx, if either or both 

 be present, and usually with one of the sify^S; thehjunc- 

 ttire, or point of union, flat, or finally concave, various in 

 breadth in those which are compressed laterally; nearly 

 as broad as the seeds in those which are compressed 

 transversely; their margins either simple, or bordered 

 with a membranous wing; their outer surface more or 



VOL. II. D 



