318 



BORAGINEyE. XII. PULMONARIA. XIII. MERTENSIA. 



the speckled leaves of some species, than from any intrinsic 

 quality which experience has discovered to be useful in pulmon- 

 ary complaints. Most plants of the order are more mucilaginous 

 than this, which, according to Linnaeus, when burnt, affords fre- 

 quently one-seventh of its weight in ashes. 



Far. /3, albiflbra ; flowers white. If. . H. Native of Europe. 

 P. vulgaris latifolia flore albo, Bauh. pin. 259. Tourn. inst. 

 p. 136. 



Far, y, immaculata ; leaves without spots, green. If.. H. 

 P. non maculosofolio, Clus. hist. 2. 169. 2. Bauh. pin. 260. 

 Knor del. rom. 2. t. p. 2. Knip. cent. 1. no. 72. 



Officinal Lungwort. Fl. May. Britain. PI. 1 foot. 



2 P. ANGUSTIFOLIA (Lin. spec. 194. fl. suec. no. 164.) calyxes 

 length of the tube of the corolla ; leaves oblong-lanceolate, or 

 lanceolate, clothed with soft down-like hairs, cauline ones half 

 stem-clasping. If.. H. Native of Portugal, Hungary, Swit- 

 zerland, Denmark, Sweden, and Siberia, but more rare than 

 P. officinalis; in England, in the same places as mentioned for 

 P. officinalis. Oed. fl. dan. t. 483. Smith eng. bot. t. 1628. 

 St. Hil. livr. 40. t. 7. Lehm. asper. p. 275. Bocc. mus. 110. 

 t. 86. Park. par. 248. 3. t. 251. f. 2. Gmel. sib. 4. p. 73. no. 

 6. Mor. hist. 3. sect. 11. t. 29. f. 15. Clus. hist. 2. p. 169. 

 icon. Stem hairy. Racemes twin, capitate. Calyx inflated, 

 while bearing the fruit with lanceolate-acute segments. This 

 is very nearly allied to P. officinalis, and is only distinguished by 

 the narrower spotless leaves. Corolla violaceous before expan- 

 sion, and blueish-purple afterwards. There is also a variety 

 with white flowers. 



Far. -y, oblongata (Lehm. asper. 275.) leaves a little shorter, 

 broader, and blunter. 1 . H. Native of Europe. P. oblongata. 

 Schreb. in litt. P. angustifolia, Baumg. fl. trans. 1. p. 124, 

 Schtiltes, fl. austr. ed. 2nd. no 757. Lap. fl. pyr. p. 88. Gmel. 

 fl. bad. 1. p. 424. Willd. enum. p. 105. Vill. dauph. 2. p. 451. 

 All. ped. no. 175. D. C. syn. fl. gall. no. 2720. Sut. fl. helv. 

 1. p. 105. Roth. tent. fl. germ. 2. p. 212. Poll. pal. 1. p. 

 186. Hall, helv. no. 596. 



Narrow-leaved Lungwort. Fl. Apr. May. Britain. PI. 1 foot. 



3 P. MOLLIS (Wulf. ex Horn, hafri. 1. p. 719. D. C. fl. fr. 

 suppl. p. 420.) calyxes rather longer than the tube of the corolla ; 

 leaves ovate-oblong, half stem-clasping, clothed with downy 

 tomentum : radical ones oblong-lanceolate. If. H. Native 

 of Germany, Transylvania, Siberia, and the Pyrenees, in shady 

 places. Poir. suppl. 4. p. 621. exclusive of P. angustifolia, 

 Pall. Baumg. fl. trans. 1. p. 125. Sims. bot. mag. 2422. Lehm. 

 asper. p. 176. D. C. fl. fr. 6. p. 420. Rchb. icon. cent. 6. 

 p. 4. t. 503. f. 696. P. angustifolia, Besser, galic. 1. p. 150. 

 exclusive of the synonymes. P. officinalis, Patrin mss. P. offi- 

 cinalis, y, Lin. P. II. non maculoso folio Clus. hist. 2. p. 169. 

 Knor. del. 2. t. p. 2. An intermediate plant between P. offici- 

 nalis and P. angustifolia, covered all over with soft hairs. 

 Peduncles shorter than the floral leaves. The recesses 

 between the lobes of the corolla are wider than in P. officinalis. 

 Colour of flower the same as in the two preceding. 



Soft Lungwort. Fl. April, May. Clt. 1805. PI. f foot. 



4 P. GRANDIFLORA (D. C. cat. hort. monsp. 1813, p. 135. 

 icon. ined. t. 64.) calyxes length of the tube of the corolla ; 

 stamens inclosed within the tube ; leaves spotted with white, 

 downy, lower ones oblong-spatulate, superior ones ovate-cordate. 

 It.H. Native country unknown ; but probably of some part 

 of Europe. P. maculata, Diet. gart. lex. 7. p. 657. P. angus- 

 tifolia, hort. belg. P. angustifolia, Poir. diet. 5. p. 735. ? Mor. 

 hist. 3. sect. 11. t. 29. f. 9. ? Flowers reddish before expansion, 

 afterwards bluish-purple. 



Great-flowered Lung-wort. Fl. April, June. Clt. 1819. 

 PI. 1 foot. 



5 P. PUBE'SCENS (Willd. herb, ex Rcem. et Schultes, syst. 4. p. 



744.) calyxes length of the tube of the corolla ; leaves mucronate, 

 veiny-nerved, glabrous above, clothed with downy tomentum 

 beneath ; radical ones ovate-petiolate : cauline ones ovate-sessile, 

 or cordate, half stem-clasping. If.H. Native of Curil Islands, 

 where it was collected by Steller and Pallas. Peduncles naked, 

 terminal, bearing a fascicle of flowers at the apex. Calyx hairy, 

 with lanceolate segments. 



Downy Lung-wort. Fl. Apr. June. Clt. 1821. PI. to 1 foot. 



6 P. AZU'REA (Besser, fl. galic, 1. p. 250. Lehm. asp. 274.) 

 calyx hardly so long as the tube of the corolla ; leaves hispid 

 from pili : radical ones oblong-lanceolate, acuminated, tapering 

 into the petioles : cauline ones narrow-lanceolate, sessile ; limb 

 of corolla campanulate. I/ . H. Native of Galicia, Austria, 

 and Hungary. P. angustata, Schrad. Bessera azurea, Schultes, 

 obs. bot. p. 27. oestr. fl. 2. ed. 1st, p. 735. Mor. hist. 3. 

 sect. 11. t. 29. f. 5.1 Puhn. HI. Austnaca, Clus. CLXIX. 

 P. Clusii, Baumg. fl. trans. 1. p. 123. Calyx campanulate; 

 segments unequal, acute, keeled at the base; hence it is prism- 

 atieally pentagonal. Corolla tubularly campanulate ; tube red, 

 cylindrical, somewhat tetragonal at the base, attenuated in the 

 middle; segments of the limb roundish, spreading, blue. Flow- 

 ers disposed in a corymbose terminal raceme; floriferous pedun- 

 cles pendulous. Bracteas similar to the cauline leaves. 



Azure-blue Lung-wort. Fl. Apr. Ju. Clt. 1823. PI. 1 foot. 



7 P. TUBEROSA (Schrank, cat. hort. mon. 1814.) perhaps 

 only a slight variety of P. officinalis. 7. H. Native country 

 unknown. 



Tuberous-rooled Lung-wort. Fl. April, May. Clt. 1824. 

 PI. f foot. 



Cull. All the species of Pulmonaria are very pretty plants 

 when in blossom ; and being early flowerers they are rather 

 desirable for borders. They are of the most easy culture, and 

 will grow in any common garden soil, and are readily increased 

 by division. Most of the species grow well under the drip of 

 trees, and all do best in shady situations. 



XIII. MERTE'NSIA (named after Prof. Mertens, of Bre- 

 men, author of a work on marine Algae.) Roth. cat. 1. p. 34. 

 Pers. ench. l.p. 161. Pulmonaria species of Lin. and others. 

 Lithospermum species of Lehm. 



LIN. SYST. Pcntandria, Monogynia. Calyx short, 5-parted. 

 Corolla funnel-shaped ; throat pervious, naked, or furnished 

 with small, fleshy processes. Anthers oblong, inclosed. Nuts 

 4, 1 -celled, ovate, smooth or wrinkled, imperforated at the 

 base, fixed to the bottom of the calyx. Elegant, trailing 

 or erect, smooth glaucous plants. Racemes panicled or sub- 

 corymbose. Flowers blue, drooping. Radical leaves increasing 

 after florescence, petiolate ; cauline ones sessile. 



1 M. PANICULA'TA ; stem erect; leaves nerved, scabrous, 

 acuminated : lower ones ovate-cordate : superior ones ovate- 

 oblong ; flowers panicled; calyx hispid from pili. "%. H. 

 Native of Hudson's Bay. Pulmonaria paniculata, Ait. hort. 

 kew, 4. p. 181. Pursh. fl. amer. sept. 1. p. 131. Lithospermum 

 paniculatum, Lehm. asp. p. 289. Peduncles glabrous, terminal, 

 and axillary ; at first sub-umbellate, then racemose. Lower 

 leaves large. Corollas blue. Nuts ovate, trigonal, wrinkled, 

 white, longer than the calyx. There is also a variety of this 

 with white flowers. 



Panic/erf-flowered Mertensia. Fl. May, June. Clt. 1778. 

 PL lj foot. 



2 M. DAHU V RICA; stem erect ; leaves obsoletely nerved, rather 

 scabrous : radical ones ovate, obtuse : cauline ones lanceolate, 

 acuminated; calyxes blunt, rather villous. It. H. Native of 

 Dahuria. Pulmonaria Dahurica, Fisch. hort. gorenski. Sims, 

 bot. mag. 1743. P. amce'na, Stev. in litt. Lithospermum Da- 

 huricum, Lehm. asper. p. 296. P. gracilis, Willd. herb, ex 



