2i2 TETRANDRIA— TETRAGYNIA. Radiola. 



1. T. ??i?/s'cosa. Mossy Tillaea. 



Stems procumbent. Flowers sessile, mostly three-cleft. 



T. muscosa, Linn. Sp. PL 186. TVilld. v.\.72\. FL Br. 201. 

 Engl. Bot. V. 2. ^.116. Roses Elem. append. 448. t. 2./ 2. 



T. muscosa annua perfoliata, flora albo. Mich. Gen. 22. t. 20. 



SempervivLim omnium minimum, repens, muscosum, polygon! 

 fiicie. Bocc. Mus. v. 2. 36. t. 22. 



Polygonum muscosum minimum. Bocc. Sic. 56. t. 29. 



Crassula foliis sessilibus connatis;, floribus aggregatis in foliorum 

 alis. Guett. Obs. v. 2. 97. 



On the most barren sandy heaths. 



Frequent in Norfolk and Suffolk, A troublesome weed on the 

 gravel walks at Holkham. 



Annual. Matj, June. 



Root fibrous, small. Stems at first erect, but soon becoming pro- 

 cumbent, an inch or two in length, round, leafy. Leaves^ oppo- 

 site, very succulent, reddish, smooth, oval, obtuse, combined at 

 the base. FL axillary, solitary, often accompanied by a pair of 

 smaller leaves. Col. pointed. Petals narrow, pointed, white 

 with a tinge of red. The whole plant is smooth, so small and 

 depressed that it only becomes remarkable by the ample reddish 

 patches, which it forms over the most dreary sands. Thejlowers 

 are naturally 3 -cleft, and of course triandrous5 but they are 

 sometimes 4-cleft in strong plants, and Gsertner says 5 -cleft. 

 Still the want of nectaries keeps them generically distinct from 

 the chiefly African genus Crassula. 



86. RADIOLA. Flax-seed. 



GmeL Syst. v. 2. 289. FL Br. 201 . DHL Gen. 126. t 7. 



Linocarpum. Mich. Gen. t.2\. 



Nat. Ord. Gruinales. Linn. 14. Akin to CaryopliyllecE, 

 Juss. 82. See n. 180. Lima, DeCand. 15. — It still re- 

 mains very doubtful to what Order this genus and Linum 

 are nearest akin. 



CaL inferior, of one leaf, in 4 principal segments, each of 

 which is deeply and acutely 3-cleft, permanent. Petals 4, 

 obovate, undivided, spreading, the length of the calyx, 

 and alternate with its principal segments. Filam. 4, awl- 

 shaped, the length of the petals, without any intermediate 

 imperfect filaments. Anth. roundish, of 2 lobes. Germ, 

 superior, roundish, 4-lobed. Styles 4, terminal, capillary, 

 very short, permanent. Stigm. capitate, obtuse. Caps. 

 roundish, somewhat pointed, with 8 furrows, 8 valves, 

 with inflexed edges, cohering slightly in pairs, and 8 cells. 

 Seeds solitary, ovate, compressed, polished. 



