324 MONOECIA — POLYANDRIA. [Fagus. 



Cor. 0. Germen 1. St)/le filiform, curved. Sligma simple. 

 Nut superior, 1 -seeded. — Nat. Ord. CERATOPHYLLEiE, Graij — 

 Name — xs^ac, zsgarog, a horn, and fj'/J.ov, a leaf, from the foi-ked 

 leaves. 



18. MvRiDPHYLLUM. Barren fl. (7a^. inferior, of 4 leaves. 

 Pet. 4. Stam. 8. — Fertile Ji. Cal. of 4 leaves. Fet. 4. Stig- 

 mas 4, sessile. Nuts 4, sessile, subglobose, 1-seeded. — Nat. Ord. 

 Halorage/E, Br. — Name — /j^vpio:, a myriad, and ;p'j/.7.ov, a leaf, 

 from its numerous leaves. 



19. Sagittaria. Barren ft. Cal. 3-Ieaved. Pet. 3. Stam. 

 numerous Fertile fl. Cal. 3-leaved. Pet. 3. Pistils very- 

 numerous, collected into ahead. Pericarps 1-seeded, compressed, 

 margined. — Nit. Ord. Alismace.e, Bich. — Named from sagitta, 

 an arroie, on account of the shape of its leaves. 



20. Arum. Spatha of one leaf, convolute at the base. Pe- 

 rianth 0. Spadix with germens at the base. Stam. (sessile) 

 near the middle of the spadix, which is naked above. Berry 

 with 1 cdl and manyseer/s. — Nat. Ord. Aroide/E, y«s5. — Name, 

 formerly written Aron, and supposed to be an ancient Egyptian 

 word by which one of this tribe was known. 



21. PoTERiuM. T^/oji^er* collected into a head, with 3 (or 4) 

 bracteas at the base of each ; upper ones fertile. — Barren ft. 

 Cal. of 4 deep segments. Cor. 0. Slam. 30 — 40, with very 

 long, flaccid fihiments. — Fertile fl. Cal. tubular, contracted at 

 the mouth, with 4 deciduous teeth. Pistils^. Stigmas tuhed. 

 Pericarps 2, 1-seeded, invested with the hardened 4-angled tube 

 of the calyx. — N^at. Ord. RosACEiE, Juss. — Named from joo^e- 

 riiim, a drinking cup: the plant having been used in the prepar- 

 ation of a drink, called in EiW^lami a cool-tankard. 



22. QuERCUS. Barren fl. in a lax catkin or spike. Perianth 



single, 5 — 7-cleft. Slam. 5 — 10 Fertile fl. Involucre of many 



little scales, united into a cup. Perianth single, closely investing 

 the germen, 6-toothed. Germen 3-celled. Style 1. Stigmas 3. 

 Nut (^or acorn) 1-celled, 1-seeded, covered by the persistent, en- 

 larged perianth, and surrounded at the base by the enlarged cup- 

 shaped involucre — Nat. Ord. AMENTACEiE, Juss. — Named from 

 the Celtic quer, beautiful, and cuez, a tree. It produced the Mis- 

 seltoe of the Druids, and was thence called also derw ; hence 

 Barach, Gaelic ; opug, in Greek, and Dryades. 



23. Fag us. Barren fi. in a globose catkin. Perianth single, 



of 1 leaf, campanulate, 6-cleft. Stam. 5 — 12 Fertile fl. 2, 



within a 4-lobed, prickly involucre. Perianth single, urceolate, 

 with 4 — 5 minute lobes. Gertnen incorporated with the peri- 

 anth, 3-celled, 2 becoming abortive. Styles 3. Nuts 1-seeded, 

 invested with the enlarged involucre. — Nat. Ord. AMENTACEiE, 



