Ptnus.] MONOECIA — MONADELPHIA. 325 



Juss. — Name — 'payoi, in Greek, from ipayu, to eat, on account 

 of tlie nutritive qualities of the fruit. 



24. CastAnea. Barren^, in a very long cylindrical catkin. 



Perianth single, of 1 leaf, 6-cleft. Stam. 5 — 20 Fertilefl. 3, 



within a 4-lobed, thickly muricated involucre. Perianth single, 

 urceolate, 5 — 6-lobed, having the rudiments of 12 stam. Germen 

 incorporated with the perianth, 6-ceIled, each cell 2-seeded, 5 of 

 the cells mostly abortive. Stijles G. Nnt I — 2-seeded, invested 

 with the enlarged involucre. — Nat. Ord. Amentace^>, Juss. — 

 Named from Castanea, in Thessaly, which produced magnificent 

 Chestnut trees. 



23, Betula. Barren fi. in a cylindrical catkin ; its scales 3- 

 flowered. Perianth 0. Stam. 10— .]2.— Fertile f.. Scale of the 

 catkin imperfectly 3-lobed, 3-flowered. Perianth 0. Sft/les 2. 

 Germen compressed, with 2 cells, ] of which is abortive. Nuts 



compressed, with a membranaceous margin, 1-seeded Nat. 



Ord. Amentace^, Juss — Name derived from betu, the Celtic 

 name for the Birch. 



26. Carpjnus. Barren Jl. \n a cyVindrical catkin } its scales 



roundish, ciliated at the base. Stam. 8 — 20 Fertile Ji. in a 



lax catkin ; its scales large, foliaceous, 3-lobed, l-flowered. In- 

 volucre 0. Perianth of 1 leaf, urceolate, 6-dentate, incorporated 

 with the 2-celled ^er«ie?«, of which 1 cell is abortive. Styles 2. 

 Ntit ovate, striated, 1-seeded. — Nat. Ord. Aimentace^, Juss. — 

 Named — car, wood, and pin, a head, in Celtic; it having been 

 the wood employed to make the yokes of oxen. 



27. CoRYLUS. Barren Jl.m a cylindrical catkin; its scales 

 3-cleft. Perianth, 0. Stam. 8. Anthers 1 -celled. — Fertile fl. 

 Perianth obsolete. Germens several, surrounded by a scaly in- 

 volucre. Stigmas 2. Nut 1-seeded, invested at the base with 



the enlarged, united, coriaceous scales of the involucre Nat. 



Ord. Amentace^, Juss. — Named from xogjj, a casque or cap; 

 the fruit, with its involucre, appearing as if covered with a 

 bonnet. 



ORD. VIII. MONADELPHIA. Stamens united into one set. 



28. PiNUS. Barren Ji. in crowded, racemose catkins; the 

 scales peltate, bearing 2, 1 -celled, sessile anthers. Perianth 0. 

 — Fertile Jl. in an ovate catkin ; its scales closely imbricated, 2- 

 flowered. Perianth 0. Pericarp 1-seeded, terminated by a 

 long winged appendage, and covered with the imbricated scales, 

 forming a cone (strobilus). — Nat. Ord. Co'siye.rm,' Juss. — Name 

 — piiiy ov pen, means a crag or stony mountain, still so called in 

 Wales (as Ben in Scotland) ; where l\\Q pine delights to grow, 

 <' moored in the rifted rock." 



