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 vivum, alive. 245. 



1. S. tectorum. Common House-leek. Leaves fringed ; offsets spread- 

 ing. 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, alter- 

 nate, 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. Hot. 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. PRU'NUS. Calyx inferior, five-cleft. Petals five. Nut of the 



Drupe with slightly prominent seams. 



(Mespitus Oxyacuntha.) 



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. SPIR-f-E'A. Calyx inferior, five-cleft. Petals five. Capsules mem- 



branous, two-valved. Seeds numerous. 



Order III. POLYGYNIA. More than Five Pistils. 



5. RO'SA. 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, deciduous. 



Receptacle spongy and permanent. 

 9. TORMENTl'LLA. Calyx eight-cleft. Petals four. Seeds naked. 



Receptacle dry. 

 11. DRY'AS. Calyx 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 



