222 54. BORAGINACES. 
10. Mertensia Roth. 
1. M. maritima (Don); st. procumbent branched, 1. ovate 
acute rough with callous dots glabrous fleshy glaucous, nuts 
smooth.—Lithospermum Sm., E. B. 361. Stenhammaria Fr.— 
Fi. in racemes, purplish-blue. Protuberances in throat of cor. 
yellow. L. with a flavour resembling that of oysters. Nuts free, 
forming a pyramid, longer than the calyx. Pericarp membra- 
naceous; seed smaller than the cavity.—Northern sea-shores. 
P. V.—VOd. 
11. LirnosrermuM Linn. 
1. L. officinale (L.); st. erect much branched, 1. lanceolate 
acute veined hispid with tubercles and adpressed bristles above 
hairy beneath, throat of the cor. with a crown of scales, nuts 
smooth.—E. B. 134.—Fl. greenish-yellow. Nuts gray, highly 
polished, stony, 2 or 3 ripening in each calyx.—Root whitish — 
Dry and stony places. P. VI—VIII. Gromwell. 
2. L. purpureo-ceruleum (L.); barren st. prostrate creeping 
the others erect 2—3-fid above, 1. lanceolate acute hispid, hairs 
on the upper side adpressed tubercular, cor. much longer than 
the calyx, nuts smooth.—£. B. 117.—Fl. large, bright blue. 
Nuts “silvery white, highly polished, slightly rugged,” rarely 
produced. This species and the followmg have no scales in the 
throat of the cor. but merely 5 longitudinal downy folds. They 
belong to the genus Rhytispermum Link, Spenn.—Thickets on a 
limestone soil. rare. P. V.—VII. 
3. L. arvense (L.); st. erect branched, 1. lanceolate rather 
acute hispid with adpressed tubercular hairs on both sides, cor. 
rather longer than the calyx, nuts tubercular—H. B. 123.—¥l. 
small, white. Nuts pale brown, polished, wrinkled, pitted, 3 or 
4 perfected im each calyx. Root bright red, colouring paper, &c. 
—Corn-fields. A. V—VII. Corn Gromweil. 
12. Myosotis Linn. 
i. Persistentes. Cal. of fruit shorter than its stalk. 
1. M. palustris (With.) ; cal. open when in fr. with straight 
adpressed bristles, teeth short triangular, limb of the cor. flat 
longer than the tube, lobes slightly emarginate, pubescence of the 
st. spreading —E. B. 1973. St. 42. 2.—L. bluntish, apiculate. 
St. angular from the prominent decurrent line from the margins 
of the leaves. Clusters quite leafless. Cor. large, bright blue 
with a yellow eye. Style about as long as the calyx which is 
divided to about 4 of its length.—Valuable observations on this 
genus, by Mr. Borrer, will be found in Hook. Br. Fl. (ed. 3.) and 
