BORAGlNEiE. 485 



40. T. tomentosa,' Mill. Leaves pubescent above, hoary-tomentose beneath^ omiz- 

 lanceolate or ovate-oblong, acuminate, petioled; spikes corymbose, villous; porolla-tube 

 villous, twice as long as the calyx, scarcely longer than the linear-filiform lobes ; anthers 

 ovate, pointleted, includecl, inserted below the ooroUa-throat ; drupe 4(-l)-globose, glabrous. 

 — T. sericea, V. ?, Tresen.~K seandent shrub ; leaves 3"-li", eorolla-tube 1'"" long.— 

 Hab. Jamaica!, .J/ac/-.; Moutserrat (ex synon. V.) ; Trinidad !, iocM., Cr., on dry hills- 

 [Brazil]. 



41. T. poliochros, Spreng. ! Slender ; leaves hispiduloiis above, hoary-tomentose 

 beneath, sharply lanceolate-acuminate, shortly petioled; spikes few-branched, divaricate; 

 corolla-tvie pubescent, twice as long as the calyx, about half as long again as the linear- 



filiform lobes ; anthers ovate, pointleted, included, inserted about the middle of the coroUa- 

 tnhe; drupe 4(-l)-lobed, glabrous: lobes globose. — A suffruticose cMmber; leaves 2"-l", 

 corolla-tube 1'" long. — Hab. Jamaica 1, Wils., Bancr., March. 



42. T. incana. Lam. Slender; leaves hispidulous above, scabrous-pubescent (or 

 hoary) beneath, oblong-lanceolate or oblong-Knear, acuminate with a bluntish point, 

 petioled ; spikes usually short, few-branched, diverging ; corolla-tube pubescent, thrice as 

 long as the calyx, about twice as long as the linear-filiform lobes; anthers ovate, pointleted, 

 included, inserted about the middle of the eorolla-tube; drupe 4(-l)-lobed, glabrous : lobes 

 globose.— iam. III. t. 95./. 3.— T. minuta, Berter. (ex Descr.). T. sericea, F..', Cham.— 

 A small, trailing or suberect shrub ; leaves 1"-V (-li"), corolla-tube 1'" long. — Hab. 

 Jamaica (ex synon. Berter.) ; [Cuba I, Haiti !]. 



6. HELIOTROPIUM, L. 



Calyx 5-partite, rarely 5-dentate. Corolla salver-shaped, plaited : lobes short. Stamens 

 included. Style simple, terminal, or none : stigma supported by a ring. Nutlets 4, all 

 seceding or united in pairs. — Herbs or low shrubs ; flowers one-sided, in gyrate spikes or 

 single. 



The genera, usually separated from Heliotropium, are analogoiis- to the sections of 

 Tourneforiia, and woidd, if admitted, lead to a similar division of the latter genus. 



Sect. 1. TiARiDiUM, Lehm. — Fruit 2-lobed, the conical, cosiate nutlets being united in 

 pairs. — Corolla contracted at the glabrous throat. Anthers distinct. Stigma peltate- 

 hemispherical, as long as the style. Spikes ebracteate. 



/ 43. H. indicnm, L. Annual,..pilose ; leaves ovate or subcordate, contracted , into the 

 long petiole, crenate-repand ; spikes elongated, simple ; anthers inserted below the middle 

 of the corolla-tube ; fruit glabrous ; lobes diverging, %-dentate : carpids with an empty 

 cavity along the commissure. — Besc. Fl. 7. t- 483. — Tiaridium, Lehm. Heliophytum, DC. 

 — 1'-2' high ; flowers pale-blue. — Hab. Jamaica I, all coll., a weed ; Nevis, Aptigua I, 

 Wullschl. ; TMnidad !, Sch. ; [Illinois ! to Buenos Ayres !, and all tropical countries.] 



I Sect. 2. Heliophytum, Cham. — Fruit didymous, the subglobose nutlets being united in. 

 jpairs. — Corolla-tube open. Anthers distinct. Spikes ebracteate. 



/ 44. H. parviflorum, L. Annual or suffrutescent, pilose; leaves ovate-lanceolate, 

 ovate, or lanceolate-oblong, pointed, petioled : hairs scattered above, confined to the veins 

 beneath ; spikes slender, simple or 2-partite ; anthers oblong, pointed, inserted below the 

 middle of the shortly exserted corolla; stigma convex, sessile, puberulous; fruit rugose, 

 glabreseent, shortly i-lobed : carpid-pairs parallel. — Bill. Mlth. 1. 146. — Heliophytum, BC. 

 H. foetidnm, BC. H. humile, Fcepp, Cub. (non Lam.). — 1'-3' high ; leaves often opposite; 

 corolla white : tube ■!'" long ; limb hairy above. — Hab. Bahamas !, Swains. ; Jamaica !, all 

 coU., a weed ; Antigua !, Wullschl., S. Vincent !, Guild. ; Trinidad !, Cr., Lockh., common 

 on dry banks during the wet season ; [Key West ! ; Cuba ! and Mexico ! to Peru ! and 

 Brazil ! ; Galapagos !]. 



Sect. 3. ExiHELiOTBOPiUM. — Fruit of 4 seceding nutlets. Spikes ebracteate. — Corolla 

 usually glabrous at the throat. Anthers mostly distinct. 



45. H. inundatum, Sw. ! Annual or sufirutescent, hairy-subcanescent with appressed 



