68 PENTANDRIA HEXAGYNIA. [CI. 5. 



Muddy sea-shores, E. coast. %. 7, 8. L. small. Fl. bluish ; stalks 

 spreading. 



180. LlNUM. Flax. 

 [Herbaceous or shrubby. Leaves simple. Bark very tenacious] 



* Leaves alternate. 



1. L. usitat'issimum, 19. 1357. (Common F.) Calyx-leaves ovate, 



acute, with three ribs. Petals crenate. Leaves lanceolate, al- 

 ternate. Stem mostly solitary. 

 Fields. 0. 7. Hoot small, fibr. Fl. blue. Caps, acuminate. 



2. L. perenne, 1. 40. (Perennial F.) Calyx-leaves obovate, obtuse, 



obscurely five-ribbed, naked. Leaves linear-lanceolate. Stems 

 numerous, ascending. 

 Chalky hills,l£. 6,7. R. woody, branched at the top. Caps, bluntish. 



3. L. angustifblium, 6. 381. (Narrow-leaved F.) Calyx-leaves 



elliptical, three-ribbed, naked, and, like the capsule, pointed. 

 Leaves linear-lanceolate, three-ribbed. Stems numerous. 

 Sandy or chalky past. %. 7. Like the last, but stem more erect. 



** Leaves opposite. 



4. L. catharticum, 6. 382. (Purging- F.) .Leaves opposite, obovate- 



lanceolate. Panicle forked, partly drooping. Petals acute. 

 Dry past. . 6 — 8. Slender. Fl. small, white. Cal. single-ribbed. 



181. SIBBALDIA. Sibbaldia. 



1. S. prociimbens, 13. 897. (Procumbent S.) Leaflets wedge-shaped, 

 with three terminal teeth. 

 Highl. mount. 1^.7. R. woody. Stem! — 3m. hairy. Pet. yell. small. 



PENTANDRIA HEXAGYNIA. 



182. DRoSERA. Sun-dew. 

 [Herbaceous, often stemless, clothed with glandular viscid hairs.] 



1. D. rotundifolia, 13. 867. (Round-leaved S.) Leaves depressed, 



nearly orbicular, on hairy stalks. Flower-stalks from the root, 

 racemose. 

 Bogs. 1/. 7, 8. Hairs of the leaves red, infiexed. Fl. white. 



2. D. longifolia, 13. 868. (Long-leaved S.) Leaves radical, spathu- 



late, very obtuse, erect, on long glabrous footstalks. Seeds with 

 a compact, rough coat, not chaffy. 

 Bogs. y. . 7, 8. Like the last, but rather larger. L. oblong. 



3. D. dnglica, 13. 869. (Great S.) Leaves radical, linear-spathu- 



late, erect, on very long glabrous footstalks. Seeds with a loose 

 chaffy coat. 

 Marshes, rare. y. . 7, 8. Larger and quite distinct. 



