66 20. LINAGES. 



Order XX. LINACE^E. 



Sep. 4—6, persistent, imbricate. Pet. 4 — 6, twisted in aesti- 

 vation, clawed, fugitive. Stam. as many as the pet., connected 

 into a hypogynous ring with intermediate teeth (abortive sta- 

 mens). Ovary with about as many cells and styles as the sepals, 

 stigmas capitate. Caps, generally tipped with the hardened base 

 of the styles, with 3 — 5 complete dissepiments (of 2 membranes), 

 and 4 — 5 incomplete dissepiments. Seeds 1 in each spurious 

 cell, pendulous, with albumen. — L. without stipules, alternate. 



1. LiNDM. Cal. of 5 sepals. Pet. 6. Stam. 5. Styles 5. 

 Caps, with 10 cells and 10 valves. 



2. Radiola. Cal. of 4 sepals, connected below, deeply trifid. 

 Pet. 4. Stam. 4. Styles 4. Caps, with 8 cells and 8 valves. 



1. LiNUM Linn. Flax. 



■^ Leaves scattered. Margins of the sep. not glandular. 



1. L. angustifolmm (Huds.); caps, downy within, sep. ellip- 

 tical pointed cihated, 1. linear-lanceolate, st. many. — E. B. 381. 

 — Fl. pale blue. St. 1 — 2 feet high, la.t, branching irregularly. 

 — Sandy and chalky places. P. VII. E. I. 



*2. L. usitatissimum (L.) ; caps, glabrous within, sep. ovate 

 pointed ciliated, 1. lanceolate, St. solitary. — E. B. 1357. St. 26. 

 12. — Fl. blue. St. 1 — 14 foot high. Sep. 3- veined. — j3. crepi- 

 tans (Schub.) ; smaller and more branched, caps, opening with 

 elasticity, seeds paler. — In cultivated fields. A. VII. Common 

 Flax. 



3. L. perenne (L.); sep. obovate obtuse obscurely 5-veined 

 glabrous, 1. linear-lanceolate, st. many, fi-uitstalks erect. — E. B. 

 40. — Fl. blue. St. 1 — 2 ft. long, erect or decumbent. — Chalky 

 places. P. VI. VII. E. I. 



** Leaves opposite. 



4. L. catharticum (L.) ; sep. elliptical pointed, I. opposite ob- 

 ovate, upper 1. lanceolate. — E. B. 382. — *F1. white, small; sep. 

 serrated ; pet. acute. St. one or more, slender. Panicle forked, 

 spreading. — In dry pastures. A. VI. — VIII. 



2. Radiola Oniel. Flax-seed. 



1. R. millegrana (Sm.).— E. B. 893. R. linoides DC, Koch. 

 — St. 1 — 2 in. high, repeatedly forked, with solitary fl. in the 

 axils as well as at the extremities of the branches. i?l. minute. 



