Menziesia.'] OCTANDRIA — MONOGYNfA. 155 



CLASS VII. HEPTANDRIA. 7 Stamens. 

 ORD. I. MONOGYNIA. 1 Style. 



I. TuiENTALis. Cal. of 7 leaves. Cor. monopetalous, in 

 7 deep segments, regular and flat. Caps. ] -celled, with 7 valves, 

 and many seeds on a fleshy, central, free receptacle. Seeds with 

 a reticulated tunic. — Nat. Ord. Primulace.^, Juss. — Name ; 

 origin unknown. 



fSee Ulmus in Cl. V. Ord. II.; 



HEPTANDRIA— MONOGYNIA. 



1. Trientalis. Rujjp. duckweed Winter-green. 



I. T. Europcm, L.(EuropeafiC/iickweed Winter-green); leaves 

 oblongo-obovate obtuse. E. Bot. t. 15. Hook, in Fl. Loud. N. S. 

 t. 161. 



Woods in the north of England, but rare. Abundant in many parts 

 of the Highlands of Scotland. Not found in Ireland. Fl. June. If. — 

 Root filitorm, creeping. Stems 4 — 6 inches high, with 2 or 3 small, 

 distant leaves, and 4 — 7 terminal, whorled larger ones ; from the centre 

 of which arise 1 — 4, slender, single-flowered peduncles. Cal.-leajiets 

 almost subulate, varying in number from 6 — 9, as do all the other parts 

 of the flower and the valves of the capsule. Ihe fruit had always been 

 misunderstood, till Sir J. E. Smith described it in Rees' Cyclopaedia. 

 The beautiful covering, like the finest white lace, of its seeds, had been 

 taken for a pericarp ; because few Botanists had seen the very fugacious, 

 horny valves of its capsule. {See Fl. Land. N. S.t.\6l.) This is assur- 

 edly one of the most interesting of our Highland vegetable productions ; 

 and, like Butomus, is the only British example of a plant of its Class. 



CLASS VIII. OCTANDRIA. ^Stamens. 



ORD. I. MONOGYNIA. 1 Style. 

 * Flowers complete (^having Cal. and Cor.). 

 Acer. Cal. inferior, 5- cleft. Pet. 5. Germen 2-lobed. 

 Capsules 2, united at the base, each with a long winged mem- 

 brane, (hence called a Samara), 1 -celled, 1 — 2-seeded. — Nat. 

 Ord. AcERlNE^, Juss. — Named from acer, sharp or hard (ac, 

 Celtic), on account of the hardness of the wood, whicli was em- 

 ployed in fabricating spears, pikes, &c. 



2. Chlora. Cal. inferior, of 8 deep segments. Cor. of 1 

 petal, nearly rotate. Stigmas 2, bifid. Cops. 1-celled, 2-valved, 



many-seeded Nat. Ord. Gentiane^, Juss. — Name derived 



from ^Xwgoc, pale, or i/ellowish-green, in allusion to the colour of 

 its flowers. 



3. Menziesia. Cal. inferior, cleft to the base into 4—5 deep 

 segments. Cor. of 1 jjetal, ventricose. Siam. 8 — 10. Capsule 



