328 BORRAGINACEJE. (l'.OUACJE FAMILY.) 



l. T. Canadense, L. Stem tomentose, erect, simple or branched; leaves 

 short-petioled, ovate-lanceolate, acute, serrate, pubescent above, white-velvety 

 beneath ; flowers mostly alternate, in a long hoary spiked raceme, longer than 

 the subulate bracts; calyx bell-shaped. (T. Virginicum, L ) — Swamps and 

 low ground, Florida to Mississippi, and northward. July- Sept. 1J. — Stem 

 2° -3° high. Leaves 2'- 6' long. Flowers purplish. 



Order 95. BORRAGINACEiE. (Borage Family.) 



Herbs or shrubs, with terete or irregularly angled stems, and alternate 

 entire exstipulate mostly rough-hairy leaves. Flowers usually in 1-sided 

 spikes or racemes, which are coiled in the bud. — Calyx free, 5-cleft or 

 5-parted, valvate in the bud, persistent. Corolla regular (except No. 6), 

 hypogynous, 5-lobed, imbricated or (in Myosotis) convolute in the bud. 

 Stamens 5, equal, inserted on the tube of the corolla and alternate with 

 its lobes. Ovary 4-celled, with a single ovule in each cell. Style single. 

 Fruit various. Albumen scarce or none. Cotyledons flat or folded. 

 Radicle superior. 



Synopsis. 



Tribk I. CORDIEiE. Ovary undivided. Style terminal, twice 2-lobed ut the apex. 



Fruit a 4-celled drupe. Cotyledons folded. Albumen none. — Shrubs. Flowers iu 

 beads or spikes. 



1. COKIHA. Calyx opening regularly, not circumscissile. 



TRniE II. EHRETIE.nE. Ovary undivided. Stylo terminal, 2-lobed at the apex. 

 Fruit a 4-seeded berry. Cotyledons flat. Albumen scanty. — Shrubs. 



2. EIIItETIA. Style slender. Flowers corymbose. 



3. TOUKNEEORTIA. Style short. Flowers eymose or spiked. 



Tribe III. HELIOTROPES. Ovary undivided. Stylo terminal, simple. Fruit 

 separating into 2 or 4 nutlets. — Chiefly herbs. 



4. HELI0TR01MIJM. Fruit separating into 4 nutlets, each 1-secdcd. 



6. HELIOI'IIY'ITM. Fruit separating into 2 nutlets, each 2-eeeded. 



Trtiie IV. BORUAGEJE. Ovary deeply 4-part«d, enclosing the base of the simple 

 style. Fruit of 1 - 4 one-seeded nutlets. — Ilorbs. 



* Throat of the corolla naked. Nutlets not hispid. 

 t- Corolla irregular, 

 ft. ISCHIUM. Corolla funnel-ahaped, unequally lobed. 



-t- 4- Corolla regular. 



7. 0N08M0DI1 m. Lobee of the corolla erect, acute. Nutlets smooth and stony. 

 . LTTH08PERM1 M Lobes of the corolla rounded. Nutlets smooth or rugose. 



9. mki: i iis-i I Lobe* of the corolla rounded. Nutlets somewhat Beshy. 



10, MYOSOTIS. Lobes Of the COrolle convolute in the bud. Nutlets ■BOOtha 



• • Throit of the corolla OlOfCd with scale*. Nil tlcU hispid. 



11. 0YN03L08B1 M. Oorolla funnel-shaped. Nutlets depressed. 



