HlimuluS.] URTICACE.E. 449 



1. p. officinalis, L. Common Pellitory of the Wall. " Leaves 

 oblong-oval or ovato-lanceolate attenuated at both ends 3-nerved 

 above the base, involucre of two 3 — 7 lobed segments with an 

 alternating bractea 3 — 7 flowered, flowers sessile, that between 

 the segments with a pistil only, one only on each segment perfect 

 at length enlarged tubular coloured and longer than the stamens, 

 the others when present barren always short and campanulate." 

 ~Br. Fl. p. 374. E. B. t. 879. 



On old walls and rocks, also on shady Ledgebanks and chalk-cliffs by Ihe sea; 

 very frequent. Fl. June — October. If.. 



E. Med. — Amongst the luins of Quarr abbey. Churchyards at Newchurch 

 and Bradinfr. abundant. 



W. Med. — Churchyards of Brixton, Northwood and Freshwater. Abundant 

 on the wall by the roadside beneath Carisbrooke church, also on the walls of 

 the castle. 



Root of several stout, tapering, woody fibres, of a bright flesh-red colour inter- 

 nally. Stems numerous, 1 — 3 feet high, erect, ascending or diffuse, round, solid, 

 succulent, branched, of a purplish colour with green streaks, downy, brittle and 

 somewhat pellucid. Leaves numerous, alternate, stalked, elliptical-lanceolate 

 varying to ovate or lanceolate, attenuated at the base, shining green, a little sca- 

 brous, downy on both sides, quite entire, with 3 or 5 depressed nerves above, and 

 as many prominent ones on their pale under surface. Petioles rounded, reddish, 

 very hairy, without stipules, each of those on the main stems with a short leafy 

 shoot or branch, and 2 or 3 small roundish clusters of flowers in its axil. In- 

 volucre nearly sessile, diphyllous, the leaflets combined below, each cut into from 

 3 to 6 ovate irregular segments, shorter than the flowers, strongly fringed, single- 

 ribbed, each leaflet of the involucre (or bract?) 1 — 3 flowered, when single- 

 flowered usually 3-cleft, otherwise multifid. Between the two leaflets on their 

 point of union is a solitary central ^ouier, bearing a pistil only and ripening seed. 



For a curious and interesting account of the mode of fructification iu Parietaria 

 see Baxter's Gen. of Br. Flow. Plants, vol. iii. No. 224. 



Tribe II. Cannabine^. 



"Dioecious. Barren flowers racemose or panicled. Filaments 

 of stamens straight and anthers erect during (estivation. Stigmas 

 2, sessile, filiform. Ovule pendulous. Embryo hooked or spiral, 

 without albumen. Stipules small." — Br. Fl. 



III. HuMuiiUS, Linn. Hop. 



" Barren flowers : —Perianth 5-partite. Stamens 6. Anthers 

 with 2 pores at the extremity. — Fertile flowers in a catkin, the 

 scales (perianth?) concave, entire, single-flowered, at first envelop- 

 ing the ovary, at length persistent and enlarged. Perianth 0, 

 except the scale. Embryo spiral." — Br. Fl. 



1. H. Lupulus, L. Common Hop. Br. Fl. p. 375. E. B. t. 

 427. 



In rather moist woods and hedges, in swampy or boggy thickets, osier-beds, &c. ; 

 abundant in most parts of the island. Fl. July, August. Fr. September, Octo- 

 ber. U. 



3 M 



