CL. XII.] ICOSANDRIA. 213 



petals, awl-shaped, shorter than the corolla ; anthers of two 

 round lobes. Germens as many as the stamens, ranged in a 

 circle, oblong, pointed, compressed. Styles short, spreading, 

 stigma obtuse. Capsules oblong, compressed, pointed. Seeds 

 numerous, minute, ranged along the inner margin on each side. 

 Name, semper, ever, and vivurn, alive. 245. 



\.S.tect6rum. Common House-leek. Leaves fringed ; offsets 



spreading. Root fibrous, crowned with several dense tufts of 



numerous oblong, acute, fringed, very thick and succulent leaves : 

 stem from the centre of one of the tufts, about a foot high, clothed 

 with narrow, alternate, sessile leaves, and terminating in a cyme 

 of large rose-coloured flowers. Perennial : flowers in July and 

 August : grows on walls and house-tops, but is not indigenous. 

 The leaves are said to be cooling, when applied externally, and 

 frequently renewed. Eng. Bot. vol. xix. pi. 1320. Eng. Fl. vol. ii. 

 p. 350. 730. 



CLASS XII. ICOSANDRIA. 



Plants bearing Flowers with Twenty or more Stamens, arising 

 from the inner edge of the Calyx. 



Order I. MONOGYNIA. One Pistil. 



1. PRIPNUS. Calyx inferior, five-cleft. Petals five. JVtrtofthe 



Drupe with slightly prominent seams. 

 (Mespilus Oxyacantha.) 



Order II. PENTAGYNIA. From Two to Five Pistils. 



2. ME'SPILUS. Calyx superior, five- cleft. Petals five. Apple 



with from two to five hard one-valved capsules. Seeds two. 



3. PY'RUS. Calyx superior, five- cleft. Petals five. Apple with 



from two to five membranous two-valved capsules. Seeds two. 



4. SPIE^E'A. Calyx inferior, five-cleft. Petals five. Capsules 



membranous, two-valved. Seeds numerous. 



Order III. POLYGYNIA. More than Five Pistils. 



5. ROSA. Calyx five-cleft, the tube pitcher-shaped, finally 



pulpy, lined with hairs, and containing numerous bristly 

 seeds. 



6. RU'BUS. Calyx five-cleft. Berry superior, compound, deci- 



duous. Receptacle spongy and permanent. 

 9. TORMENTI'LLA. Calyx eight- cleft. Petals four. Seeds 



naked. Receptacle dry. 

 11. DRY' AS. Caly x eight or ten- cleft. Petals five or eight. Seeds 



each with a long feathery tail. 

 10. GE'UM. Calyx ten- cleft. Petals five. Seeds each with a bent 



hooked tail. Receptacle dry, elongated. 



7. FRAGA'RIA. Calyx ten- cleft. Petals five. Seeds naked, 



even, on the surface of a pulpy deciduous receptacle. 

 T 



