Linacese — Malvaceae. 39 



ORDER 13. — Linaceae. 



Calyx polysepalous inferior, sepals 4 — 5. Corolla polypetalous of 4 — 5 

 petals. Stamens 4 — 5 alternate with the petals, hypogynous. Ovary 5- 

 celled. Styles 4 — 5. Leaves entire exstipulate, usually alternate. 



Petals 5, I. Linum. 



Petals 4, II. Radiola. 



\.— LINUM. 



Leaves narrow, sepals petals and stamens 5, flowers in panicles or cymes, 

 firuit a capsule apparently lo-celled. 



Flowers white, ....... L. catharticum. 



Flowers blue, 190 



190 Sepals acuminate, 19 1 



190 Sepals obtuse, L, perenne. 



191 Stem decumbent, .... L. angustifolium. 



191 Stem erect, L. usitatissimum. 



Li'num peren'ne (13). 6 — 7. Stems i — 2 ft. wiry, leaves alternate linear- 



(288) lanceolate, sepals obovate obtuse glabrous, flowers i in. bright blue. [T. 



Li'num ang-ustifo'Iium (35). 5 — 9. Stems i — 2 ft. not much branched, 



(289) leaves alternate linear lanceolate, outer sepals ovate acuminate, inner 

 sepals ciliate. [Nt. F. C. 



LI'NUM USITATISS'IMUM. Common Flax. 7. Stem 2—3 ft., leaves 

 {290) lanceolate alternate, sepals ovate acuminate, flowers 'arge blue. Corn- 

 fields. 



LI'NUM CATHAR'TICUM (in). Purging Flax. 6—9. Stems 

 (287) slender 6 — 8 in., much branched, leaves oblong, lower leaves opposite, 

 flowers \ in. white Pastures. 

 L. flavti77i, L. grandiflorutn, and several other species of Linum are 

 cultivated in gardens. 



II.— RADIOLA. 

 Sepals 4, each 2—4 toothed, petals 4, stamens 4, ovary 4-celled, styles4. 

 RADI'OLA MILLEGRA'NA (82). Allseed. 7—8. Stem erect 1—4 

 (286) in. much forked, flowers extremely minute globular. Sandy damp 

 places. 



ORDER 14. — Malvaceae. 



Leaves alternate stipulate. Calyx gamosepalous inferior, with an in- 

 volucre of 3 or more bracts. Sepals and petals 5. Stamens indefinite 

 monadelphous hypogynous. Pistil syncarpous. Stigmas several. Fruit of 

 a ring of carpels. 



Bracts united, Althaea I. 



Bracts separate, ...... . . . Malva II. 



