64 ltnack.t:. (kt.ax family.) 



1. M. Azederach, L. (Chin.v Tiii;i:.) Leavos lii])iimatc, tlio leaflets 

 ciiarsfly serrate; paiiieles axillary; Howers lilae. — IntniiliRed Ky the elder 

 Mielieaux a hiuulred years ago, aud uow a connuou siiadu tree arouud 

 dwellings. 



Ohi>kk "26. AURANTIACEyE. (OisAXfJi- Family.) 



The OuAXGE, Lemon, and Limi: (species of Citiu's, L.) are com- 

 monly cultivated in the wanner parts of the Soiltliern States, and the 

 BiTTEH-swEET Ohaxge (C. yulgauis, Risso) is completely natural- 

 ized in some portions of South Florida. 



Order 27. LINAGES. (Flax Family.) 



Chiefly herbs, with entire exstipulate leaves, and regular hj^iogjnious 

 racemose or panicled flowers. — Sepals 4-5, imbricated in the bud, 

 persistent. Petals 4-5, convolute in the bud, deciduous. Stamens 

 4-5, united at the base. Styles 4-5, rarely united. Capsule globose, 

 splitting into five 2-seeded carpels, which are more or less perfectly 2- 

 celled and 2-valved. Seeds anatropous, suspended. Cotyledons ilat. 



1. LINUM, L. Flax. 



Sepals, petals, stamens, aud styles 5. Capsvde partly or completely 10- 

 celled, the sells 1-seeded ; seeds compressed, oily. — Stems slender. Leaves 

 narrow and mostly alternate. Peduncle 1-flowered, borne above or opposite 

 the leaves. 



* Sti/les separate: capsule \0-valved. 



1. L. Virginianum, L. Stem l°-2° high, pauiculately branched 

 above ; leaves lanceolate or oblong, the lower mostly opposite, the npper 

 linear ; flowers small, distant on tlie filiform branches ; sepals ovate, acute, as 

 long as the depressed-globose capsule, mostly smooth on the margins. — Dry 

 light soil. July- August. 



2 L. Floridanum, Trelease. Stem nearly simple, virgate, l°-2o 

 high ; leaves linear, erect ; flowers larger (|' wide), rather closely arranged 

 on the short corymbose branches ; sepals shorter than the larger globo.se-ovate 

 capsule, the inner ones glandular-ciliate. — Low pine barrens, Florida. July - 

 August. 



3. Ii, striatum, Walt. Stem striate with raised lines, widely branched ; 

 leaves 1' long, lanceolate, acute; flowers very small, onesided on the leafy 

 branchlets ; sepals ovate, as long as the small depressed-globose capsule. — 

 Swamps in the upper districts. 



* * Styles more or less united : capsule b-valved. 



4. L. sulcatum, Riddell. Annual; stem 1° high, simple or sparingly 

 branched, sulcate ; leaves linear, acute, minutely biglandular at the base ; 

 sepals glandular-hispid, as long as the ovoid capsule; styles united below the 

 middle. — Drv soil, North Carolina. 



