328 MONOECIA — MONANDRIA. {Callitriche. 



Sandy sea-coast, in the extreme south and west of England ; Wales ; 

 Isle of Man. South of Scotland. Dublin. F/. Aujj. "1/ .— 6— lOinches 

 high. Tills is very rare, if not unknown, on the continent. 



10. E. exigua, L. [tbcarf Spurge); umbel of generally 3 prin- 

 cipal branches, leaves linear-lanceolate as well as the bracteas 

 rather rigid entire glabrous often truncate and nuicronate, glands 

 of the involucre with two horns, capsules nearly smooth, seeds 

 wrinkled. E. Bot. t. 1336. 



Corn-fields, in a light soil, frequent. Fl. July. 0. — 4—6 inches 

 high, branched at the base. Seeds small, white. 



11. E. Peplus, L. {petti/ Spurge); umbel of about 3 princi- 

 pal branches, bracteas ovate, leaves membranaceous broadly obo- 

 vate on short stalks entire glabrous, glands of the involucre 

 lunate the horns very long, germen somewhat winged and sca- 

 brous, seeds dotted. E. Bot. t. 959. 



Cultivated and waste ground, abundant. Fl. July, Aug. 0. 



12. ^."^ Ldtfiyris, L. {Caper- Spurge); umbel of 3 — 4 princi- 

 pal branches, bracteas cordato-acuminate, leaves submembrana- 

 ceous 4-farious oblongo-lauceolate entire cordate at the base, 

 glands of the involucre bluntly lunate, germen glabrous, seeds 

 smooth. E. Bot, t. 2255. 



Thickets about Ufton near Reading. Steep'Holmes in the Severn. 

 Crawfurdland, near Kilmarnock. Comrie Den, near Dunfermline ; Dr 

 Dewar. Fl. June, July. $ . 



13. E. amygdaloides, L. ( Wood Spurge); umbel of about 6 

 principal branches and several scattered peduncles below, leaves 

 nearly membranaceous obovato-lanceolate hairy beneath atten- 

 uated at the base entire, bracteas perfoliated, glands of the in- 

 volucre lunate, capsules minutely dotted, seeds smooth. E. Bot. 

 t. 256. — E. sylcatica, L. 



Woods and thickets in England, especially in clayey soil. South of 

 Ireland. Fl. March, Apr. If. . — Stems red, almost shrubby. 



14. E.* C/iardcias, L. (red shrubby Spurge); umbel of many 

 principal downy branches with several peduncles below, brac- 

 teas broad perfoliate acute, leaves lanceolate, glands of the in- 

 volucre lunate, germens scabrous, seeds smooth. E. Bot. t. 442. 



In Needwood forest, Staffordshire. Fl. March, Apr. Tj . — A large 

 and handsome species, not uncommon in gardens, whence it has been 

 an outcast. 



2. Callitriche. Linn. Water- star wort. 



1. Cverna, L. (vernal Water-startcort); fructiferous pedun- 

 cles very short with two bracteas at their base, fruit regularly 

 tetragonal, each portion bluntly keeled at the back. Am. — E. 

 Fl. V. i. p. 10. Am. in Ed. Journ. of Nat. and Geogr. Sc. v. i.p. 

 426.— C. aquatica, E. Bot. t. 722. Hook.inFl.Lond. N. S. 1. 127. 



Ditches, pools and slow streams, abundant. Fl. Apr. May. 0. — 

 This varies much, as do almost all aquatic plants, in its foliage. Leaves 



