328 I'.oKit.vnixACF.i:. (iu)I{A(JF, kamii.v.) 



1. T. Canadense, T^. Stem tomcntosc, erect, simj)lp or branched; leaves 

 Fhort-pitiolid, oviiti-laiK'colato, acute, serrate, pubescent al)ove, wliitc-velvcty 

 beneath ; flowers mostly alternate, in a long lioary sfiiked raceme, longer than 

 the suluilatc bracts; calyx bell-shape<l. (T. Virginicuni, L) — Swamjis and 

 low ground, Floriila to Mississippi, and northward. July -Sept. 1|. — Stem 

 2° -3° high. Leaves 2'-C' long. I'lowers purjilish. 



OuDKii 95. BORRAGINACE.'T:. (Bokaok Fa mil v.) 



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

 entire exstipulatc niostlj' 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 Xo. G), 

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

 Stamens .'), etjual, inserted on the tube of the corolla and alternate with 

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

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

 Radicle superior. 



Synopsis. 



Tribe I. CORDIEJE. Ovary undivided. Style terminal, twice 2-lobed at the apex. 

 Fruit a 4-celk'd drupe. Cotyledons folded. Albumen none. — Shrubs. Flowers in 

 heads or spikes. 



1. CORDIA. Calyx opening regularly, not circumscissile. 



Tribe II. EHRETIE.S:. Ovary undivided. Style terminal, 2-lobed at the apex. 

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



2. EIIUETIA. Style slender. Flowers corymbose 



3. TOUUNEFORTI.\. Style short. Flowers cymose or spiked. 



Tribe III. HELIOTROPEJE. Ovary undivided. Style terminal, simple. Fruit 

 separating into 2 or 4 nutlets. — Cliiefly herbs. 



4. HELIOTROl'IUM. Fruit separating into 4 nutlets, each 1-seeded. 



5. HELIOPUYTUM. Fruit separating into 2 nutlets, each 2-«eeded. 



Tribe IV. BORRAGEJE. Ovary deeply 4-parted, enclosing the base of the simple 

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



» Throat of the corolla naked. Nutlets not hispid. 

 t- Corolla irregular. 



6. ECinUM. Corolla funnel-shaped, unequally lobed. 



•I- ■*- Corolla regular. 



7. ONOSSIODIt'M. Lobes of the corolla erect, acute. Nutlets smooth and stony. 



8. LITIIOSPERMUM. Lobes of the corolla rounded. Nutlets smooth or rugose. 



9. MERTENSIA. Lobes of the corolla rounded. Nutlets somewhat fleshy. 



10. MYOSOTIS. Lobes of the corolla convolute in the bud. Nutlets smooth. 



» • Throat of the corolla closed with scales. Nutlets hispid. 



11. CYNOGLOSSCM. Corolla funnel-shaped. Nutlets depressed. 



