Arbutus.'] DECANDRIA — MONOGYNIA. 167 



CLASS IX. ENNEANDRIA. 9 Sta7netis. 



I. HEXAGYNIA. 6 Styles. 



1. BuTOMUS. Perianth single, coloured, 6-partite, inferior. 

 Capsules 6, many-seeded. Seeds fixed to the inner lining of 

 the capsule. — Nat. Ord. Butome^, Rich. — Named from [Sooc^ 

 an ox, and nij^vj), to cut ; because the sharp leaves injure the 

 mouths of cattle that browze upon them. 



ENNEANDRIA— HEXAGYNIA. 



1. BuTOMUS. Liym. Flowering- rush. 



1. B. iimbelldtiis, L. {common Flowcring-rusK) ; leaves linear- 

 suhulate trigonous, spatha of 3 leaves. E. Bot. t. 651. 



Ditches and ponds, frequent in England and Ireland. Duddingston 

 Loch, and Loch of Clunie, Scotland, where I believe it has been planted. 

 Fl. June, July. 11. — Root white, tuberous. Leaves all radical, 2 — 3 

 feet long-, linear, acuminate, acutely trigonous, more or less spirally 

 twisted at the extremity. Scape longer than tiie leaves, rounded. 

 Umbel of many rose-colouredy?oif;eys, on pedicels ai)out 4 inches long, 

 with scariose sheathing bracteas at the base ; and these having a tri- 

 phyllous membranous spathaor involucre beneath them. GermensovdAe, 

 compressed. Style about as long as the germen, with a recurved, cleft 

 stigma. Seeds parietal, or fixed to the inner surface of the pericarp, 

 extremely small. — A highly ornamental plant. 



CLASS X. DECANDRIA. \Q Stamens. 

 ORD. L MONOGYNIA. L Style. 



1. MoNOTROPA. Perianth single, of 4 — 5 leaves, cucuUate 

 at the base. Anthers 1-celled, 2-Iipped. Caps, superior, 4 — 5- 

 celled. Seeds numerous, invested with a long arillus. — Nat. 



Ord. MoNOTROPE^, Nutt Named from /z&^&;, o?ie, and rgsTw, 



to turn ; the flowers all pointing one way. 



2. Pyrola. Cal. 5-cleffc. Petals 5, often connected at tlie 

 base. Anthers opening with 2 pores. Caps, superior, 5-celled. 

 Seeds numerous, invested with a long arillus. — Nat. Ord. Mo- 

 notrope^, Nutt. — Named from Pt/rus, a pear ; from a fancied 

 resemblance in its leaves to those of a Pear-tree. 



3. Andromeda. Ca^. deeply 5-cleft. Cor. 1 -petaled, ovate 

 or campanulate. Anthers with awns. Caps, superior, 4 — 5- 

 celled,the dissepiments from the middle of the valves. — Nat.Ord. 

 Erice^, Juss. — ^Named in allusion to the fable o( Atidromeday 

 who was chained to a rock, and exposed to the attack of a sea- 

 monster: so does this beautiful tribe of plants grow in dreary and 

 northern wastes, feigned to be the abode of prseternatural beings. 



4. Arbutus. Cal. deeply 5-cleft. Cor. I-petaled, ovate. 



