ROCKS AND WALLS, ETC. 



199 



blue. Tlif pl.mt is .^ 10 in. liiijh, floweriiijj in 

 July and Aui,'u>t, and i.s a lierbactous perennial. 



Procumbent Speedwell ( yervnica saxa/ilis, L. 

 = I'. J'rulicans, Jacq.). — The habitat of this pl.int 

 is the highest Scottish alps, exposed alpine rocks. 

 The habit is prostrate. The plant is more or less 

 devoid of hairs. The stem is woody, with nume- 

 rous branches, ascending, with Icaly barren 

 shoots. The leaves are oval, elliptic, the lower 

 smaller, inversely ovate, the upper oblong, 

 coarsely toothed to the middle, leathery, the 

 teeth few or none. The flowers are l.irge, bright- 

 blue, in more or less corymb-like racemes, with 

 few flowers, downy, hairy, without glands, the 

 hairs crisped. The bracts are more or less 

 opposite. The sepals are linear to oblong, blunt, 

 not so long as the capsule. The flower-stalks are 

 long and erect. The ultimate flower-stalks are stiff. 

 The style is short and slender. The capsule is ob- 

 long, ovate, narrow-pointed, the valves bifid, the 

 seeds nearly flat. The plant is 2-4 in. high, flowering 

 in July .ind .-August, and is a herbaceous perennial. 

 Alpine Bartsia {Bartsia alpina, L.). — The 

 habitat of this plaTit is alpine pastures, subalpine 

 meadows, ;ind wet banks. The habit is creep- 

 ing. The plant is a hemi-parasite, glandular, 

 downy, the rootslock woody. The stem is simple, 

 erect, square or round, leafy. The leaves are 

 opposite, stalkless, egg-shaped, bluntly toothed, 

 the upper heart-shaped, clasping, leathery, blunt. 

 The bracts are purplish. The flowers are bluish- 

 purple, in a short, dense, leafy spike, downy. 

 The calyx is purplish, clammy, with egg-shaped 

 to lance-shaped lobes. The lips of the glandular 

 corolla are small. The anthers project, and are 

 hairy and bearded. The capsule is longer than 

 the sepals. The seeds are small, numerous, 

 winged. The plant is 4-8 in. high, flowering from 

 June to August, and is a herbaceous perennial. 



Rhinanthus borealis, Druce. — The habitat of 

 this plant is Scottish mountain pastures, corries. 

 The habit is erect, thi stem simple, densely hairy, 

 with no black striae, the internodes more or less 

 long. The stem-leaves are shorter at the inter- 

 nodes, lance-shaped, the lower leaves egg-shaped, 

 blunt. The bracts are green and rough. The 

 calyx is downy, the corolla dark treacly-yellow. 

 The plant is 2-4 in. in height, flowering in July 

 and August, and is an annual hemi-parasite. 



Rhinanthus Drummond-Hayi, Druce. — The 

 habitat of this plant is meadows and pastures, 

 lofty Scottish mountains. The plant is of Scottish 

 type, found in 6 vice-counties. It is 2-4 in. high, 

 flowering in July and .-\ugust, and is an annual 

 hemi-parasite. The habit is erect. The stem is 

 unbranched, hairy, not striate. The leaves are 

 narrow, linear. The calyx is downy. The corolla 

 is dark-yellow. 



Order Labiat.e 



Crimson Germander (Teucrium Chamadrys, 

 L.).— The habitat of this plant is old walls, &c., 

 near houses, sandy fields in Ireland. The habit is 

 ascending. The plant is hairy. The rootstock is 



creeping and bears stolons. 1 li.- ^uins .u c hairy, 

 much-branched, lealy, woody below. The leaves 

 arc ov.atc, stalked, cut, scalloped, wedge-shaped, 

 narrowed into the le.if-slalk, with prominent veins 

 below, entire below, green both sides. The flowers 

 .are purple or rose-colour, in .a raceme, 5 in a 

 whorl, in the .ixils of bracts. The lower bracts 

 are entire, stalkless, leaflike, purplish, the upper 

 smaller, broader below. The calyx-teeth are 

 lance - shaped, straight, triangular, the calyx 

 nearly equal below, and the lower lip of the corolla 

 is spotted white and red. The nutlets are smooth. 

 The plant is (j-i8 in. high, flowering from July to 

 September, ami is a herb.acrous perennial. 



Ajiiga pyramidalis, \.. — The habitat is alpine 

 shady places. The habit is erect. The whole 

 plant is h.iiry. There are no runners. The 

 flowers are purplish-blue, in compound pyr.imidal 

 spikes. The calyx is woolly. This alpine bugle 

 grows to a height of 1 ft. It. flowers from May to 

 July, and is a herbaceous percimial. 



Order PoLvcoNACEiC 



Alpine Knotweed (Polygonum vivipamm, L.). 

 — The habitat of this plant is mountain alpine 

 pastures, wet alpine rocks. The habit is erect. 

 The stem is simple, slender, with a slender root- 

 stock. The plant is hairless. The leaves are 

 narrowed below, linear, lance-shaped, with margin 

 rolled back, the radical leaves narrow, linear to 

 oblong, elliptic, the stalks without wings as long 

 as or shorter than the leaves, which are more or 

 less acute, bluish-green. The few upper leaves 

 have shorter stalks. The flowers are white or 

 pink, in a slender, loose, blunt, terminal spike-like 

 raceme, bulbiferous below, with red bulbs. The 

 fruit rarely matures. The face of the nut is egg- 

 shaped, shining, smooth, lance-shaped. The plant 

 is 4-8 in. high, flowering from June to August, 

 and is a herbaceous perennial. 



Mountain Sorrel (Oxyria digyna, Hill = 0. reni- 

 formis. Hook.). — The habitat ot this plant is moun- 

 tain rocks and streams, wet, rocky places. The 

 plant has more or less the rosette habit. It is 

 devoid of hairs, fleshy, acid in taste. The root- 

 stock is tufted. The stems are usually leafless, 

 nearly simple, and stout. The radical leaves are 

 kidney-shaped or heart-shaped, long-stalked, 

 rounded, notched at the extremity. The veins 

 radiate from the end of the leaf-stalk. The stem- 

 leaves are solitary. The panicle is a spike-like 

 raceme, slender, leafless, loose, the ultimate 

 flower-stalks slender, jointed in the middle, thick- 

 ened above. The outer perianth-segments are 

 spreading or bent-back, the inner spoon-shaped, 

 with 3-5 nerves. The fruit has a round to heart- 

 shaped wing, and is membranous, veined, notched 

 at the end. The plant is 4-8 in. high, and flowers 

 from June to August, being a herbaceous per- 

 ennial. 



Order Aristolochiace;E 



Birthwort (Aristohchia clemalilis, L.). — This 

 plant is rare and not indigenous, being found in 



