66 TETRANDRIA — MONOGYNIA. \_Isnardia. 



13. Parietaria. Linn. Wall-PelHtory. 



1. P.qfficindlis, L. {common PelUtory-of-the-icall); leaves ovato- 

 lanceolate S-nerved above the base, " involucre two-leaved, 7- 

 ilowered, the central one fertile, leaves of the involucre with 7 

 ovate segments/' Wilson. — E. Bot. t. 597. 



Okl walls and waste places, among rubbish. Fl. during the summer 

 nioiiths. 1^ . — Stons often procumbent upon the wall, reddish, pubes- 

 cent. Leaves alternate. F/oivers small, hairy, purplish, clustered in 

 the axils of the leaves. " Involucre in 2 ])urtions, of about 7 segments 

 each, and between them is placed a fertile flower, whose perianth is en- 

 tire, closely surrounding the pistil. In each portion of the involucre are 

 3 flowers apparently fertile," ( Wilson), but of which the central one 

 has only a pistil. The lateral ones have stamens and pistil. Filaments 

 jointed, in which pecidiarity exists the elastic property by which the 

 pollen is so copiously discharged. This is remarkably the case in a hot 

 summer's day. Fruit black, shining. Pericarp closely investing the 

 seed. For a full account of the curious structure of the flowers of this 

 plant see Flora Londinensis. 



14. Alchemilla. Linn. Lady's Mantle.^ 



1. A. vulgaris, L. (common Lady's Mantle^; leaves plaited 

 niany-lobed serrated. E. Bot. t. 597. — (3. minor ; leaves very pu- 

 bescent. A. hyhrida, Pers. 



Alpine pastures, abundant. Fl. June, July. 11 • — One foot high, or 

 more, lludical leaves large, on long footstalks, those of the stem with 

 connate toothed stipules, upper ones sessile and very small, lobes 6 — 9. 

 Flouers in many rather lax, corymbose, terminal clusters, yellow-green. 

 Germens 1 — 2. Seeds 1 — 2, Style lateral. 



2. A. cdpina., L. (alpine Lady's Mantle); leaves digitate ser- 

 rated white and satiny beneath. E. Bot. t. 244. 



Mountains in the north of England, and especially Scotland. On 

 Brandon mountain, Ireland. Fl, July, Aug. 1^. — One of the most 

 elegant of our native plants. 



3. A. arvensis, Sm. (field Lady's Mantle or Parsley Piert); 

 leaves trifid pubescent, lobes deeply cut, flowers sessile axillary. 

 E. Bot. t. 1011. — A. Aphanes, Willd. — Aphanes arvetisis, L. 



Fields and gravelly soils, and on wall-tops, where there is any cover- 

 ing of soil. Fl. May — July. 0. — Steins branched, leafy, 4 — 5 inches 

 long", frequently prostrate. Leaves alternate ; stipules large. Stam. 

 varying in number. Gertnens 1 or 2. 



15. IsNARDiA. Li?i?i. Isnardia. 



1. \. palustris, L. (marsh Isnardia); stem procumbent root- 

 ing glabrous, leaves opposite ovate acute stalked, flowers axil- 

 lary solitary sessile apetalous. E. Fl. v. iv. App. p. 264. Hooh. 

 in E. Bot. 'Suppl. t. 2593. 



Very rare. In a pool at Buxstead, Sussex ; Mr Borrer. Abundant 

 in a bog on Pctersfield Heath, Hampshire, discovered by Miss liichnaii 



1 Mantle of Our Lady (the Virgin Mary), therefore not "Ladies' Mantle," 

 as written by many authors. 



d 



