346 3IONOECIA — llEXANDRTA. [Eriocaulon. 



MONOECIA— PENTANDRIA. 



13. Xanthium. Liim. Bur-weed. 



1. X.*stmmdriu77i, L. (broad-leaved Bur-weed); stem unarm- 

 ed, leaves cordate angulato-dentate with 3 principal nerves at the 

 base, beaks of the fruit straiglit the prickles hooked. E. Bot. t. 

 2544. 



Rare, in waste ground in the S. of England, and Kerr}', Ireland. Fl. 

 Aug. Sept. 0. — A rank, weed-like plant, remarkable for the curious 

 structure of its /7ow'e?-5, and the prickly involucres which surround the 

 fertile ones, enlarging and becoming part oi ihe fruit. 



14. AjfARANTHUS. Limi. Amaranth. 

 1. A*BJitnm, L. {wild Amaranth); flowers 3-cleft and tri- 

 androus in small lateral clusters, the segments very obtuscj leaves 

 ovate obtuse, stem spreading. E. Bot. t. 2212. 



Low waste grounds and near dunghills : about Cambridge, Loudon, 

 and in Huntingdonshire. Fl. Aug. ©. 



15. Bryonia. Linn. Bryony. 



1. B. dioica, Jacq. {red-berried Bryony); leaves palmate rough 

 on both sides, flowers dioecious. E. Bot. t. 439. 



Thickets and hedges, frequent in England; not indigenous to Scot- 

 land. Fl. May, 1^ . — Root very large, white and branched. Stem long, 

 slender, branched, weak and climbing, with simple tendrils. Leaves 

 large. Flowers in axillary bunches. Cor. whitish, with green veins. 

 Berries red. The plant abounds with a fetid and acrid juice. 



MONOECIA— HEXANDRIA. 



16. Eriocaulon. Lin7i. Pipe wort. 



1. E. septanguldre, With, {jointed Pipewort); scapes striated 

 longer than the cellular compressed subulate glabrous leaves, 

 flowers 4-cleft hairy at the extremities as well as the scales, 

 stamens 4, capsule 2-celIed. E. Bot. t. 733. Hook, in Fl. Lond. 

 N. S. t. 52. 



Lakes in mountainous countries, rare. In Skye, Coll, and a few of 

 the neighbouring islands of the Hebrides. Cunnamara, N. W. of Ireland, 

 frequent. Fl. August. If . — Boots creeping and throwing out innumer- 

 able, white, curiously articulated fibres, which penetrate deep into the 

 mud. Leaves pellucid, beautifully cellular, as is the scape. Head of 

 numerous, compact, imnutejiowers; each with an obovate, membran- 

 ous, concave scale, nearly as long as itself. Two outer segmeiits of the 

 perianth duplicato-carinate, purplish ; two inner white, of the central 

 sterile flowers united tor a great proportion of the length, so as to be 

 two-lipped at the extremity ; each lip bearing a stamen, and above that 

 a black sessile gland; and on eacli side, between the two lips a stamen: 

 in the centre between these are 2 black, stalked glands, (abortive styles?). 

 In the fertile flowers, the 4 segments are almost equally divided to their 

 base, the inner having a black, sessile gland at the extrcmit}'. Pistil 

 shortly stipitate. Germen of 2 globose lobes. Style short. Stigmas 

 2, long, subulate. — In the Flora Londinensis I have not represented 

 the sterile flower correctly, as to its usual appearance ; nor the situation 



