GIG 



RUBIACE.E. CLXXXV. BORREKIA. 



1-2 axillary, and a terminal globose one, which is involucrated 

 by reflexed bracteas ; capsule oblong, villous at the apex, 

 crowned by the 4 subulate, glabrous teeth of the calyx. 

 Native of Brazil, where it was collected by Pohl. Spermac6ce 

 lutescens, Pohl, in litt. Allied to B. ferruginea. 

 Lu'escent Borreria. PI. 1 foot. 



50 B. H.ENKEA NA (D. C. 1. c.) stem erect, sub-herbaceous, 

 straight, branched, tetragonal, with the angles hairy at the apex ; 

 leaves linear, acute, rather scabrous, with rather revolute 

 edges ; bristles of the stipulas longer than the sheath ; heads of 

 Mowers globose, terminal, girded by 4-leaved reflexed invo- 

 lucra ; capsule obovate, roughish, crowned by the 4 lanceo- 

 late teeth of the calyx. Native of Mexico and Peru. Bige- 

 lowia psyllioides, Bartl. in herb. Haenke. Spermacoce tenuior, 

 Pav. ined. but not of Lin. It differs from B. psyllioides 

 in the involucrum being reflexed, in the heads being one half 

 larger, in the limb of the calyx being divided into 4 lobes to the 

 base, not to the middle. 



Hcenhe's Borreria. PI. 1 foot. 



51 B. STRICTISSIMA (D. C. 1. c.) stem and branches straight, 

 tetragonal, clothed with powdery down under the nodi ; leaves 

 linear, acute, glabrous, almost veinless, opposite, and in axillary 

 fascicles ; bristles of the stipulas 5-7, stiff, longer than the 

 sheath ; whorles of flowers capitate, sessile, 1-2 of which are 

 axillary, and a larger terminal globose one, which is girded by 

 2-4 leaves ; capsule oblong, glabrous, crowned by the 4 short 

 subulate teeth of the calyx. Native of Brazil, where it was 

 collected by Pohl. Spermacoce strictissima, Pohl, in litt. 

 Allied to B. suaveolens, but differs from that species in the calyx 

 being without accessory teeth. Corolla unknown. 



Very straight Borreria. PI. 1 to 2 feet. 



52 B. TENE'LLA (Cham, et Schlecht. in Linnaea. 3. p. 317.) 

 stem suffruticose at the base, erect, nearly terete, clothed with 

 retrograde adpressed villi; leaves oblong-linear, acuminated, 

 clothed with small down above, and scabrous on the nerves and 

 margins, having a few oblique nerves on both sides ; bristles of 

 the stipulas longer than the sheath, which is downy ; heads of 

 flowers globose, terminal, surrounded by 4 reflexed leaves ; 

 capsules oblong, hairy at top, crowned by the hairy 4-toothed 

 calyx. Jj.S. Native of equinoctial Brazil. 



Var. fl, angustijolia (D. C. prod. 4. p. 547.) plant weak ; 

 leaves narrow-linear ; heads size of peas ; floral leaves spread- 

 ing. Jj . S. Native of Brazil, where it was collected by Pohl ; 

 and along the banks of the Orinoco, by Humboldt and Bonpland. 

 Spermacoce longiseta, Pohl, in litt. Spermacoce tenella, H. B. 

 et Kunth, nov. gen. amer. 3. p. 345. Sperm, capitata, Willd. 

 herb. Sperm. Orinocensis, Willd. in Roem. et Schultes, syst. 3. 

 p. 531. 



Var. y, lavandultsfblia (D. C. prod. 4. p. 548.) stem at first 

 clothed with fine velvety down, but at length becoming glabrous; 

 leaves linear, with rather revolute margins ; bristles of the sti- 

 pulas very long ; heads of the flowers hemispherical, depressed, 

 involucrated by 4 spreading leaves. 17 . S. Native of Brazil, 

 where it was collected by Pohl. Spermacoce lavandulaefolia, 

 Pohl, in litt. 



Weak Borreria. Shrub ^ to 1 foot. 



53 LINOIDES (D. C. prod. 4. p. 458.) quite glabrous ; stem 

 suffruticose at the base, erect ; branches tetragonal ; leaves 

 linear, acutish, with revolute edges ; stipulas ending in 1-3 stiff, 

 setaceous points ; axillary heads few, or wanting, and 1 terminal 

 and sub-globose, the latter involucrated by 2-4 reflexed floral 

 leaves ; corolla glabrous ; capsule oval, glabrous, crowned by 

 the 4 short teeth of the calyx. T? . S. Native of Brazil, where 

 it was collected by Pohl. Spermacoce linoides, Pohl, in litt. 

 Anthers exserted. 



Flax-like Borreria. Shrub 1 foot. 



54 B. ? psyLLioinES (H. B. et Kunth, nov. gen. amer. 3. p. 

 346. t. 278. under Spermacoce) stem suffruticose, erect, tetra- 

 gonal, branched, scabrous from retrograde bristles; leaves linear- 

 lanceolate, hairy on both surfaces, with serrulately scabrous 

 edges ; bristles of stipulas longer than the sheath ; heads of 

 flowers terminal, involucrated by 6-8 radiant floral leaves ; calyx 

 funnel-shaped, 4-cleft to the middle. Jj . S. Native of Mexico, 

 near Ario. Fruit unknown, but from habit it is evidently a 

 species of Borreria. Very nearly allied to B. strictissima and 

 B. Hcenkeana. It differs from all the rest of the species in the 

 calyx being divided to the middle. 



Fleanort-like Borreria. Shrub 1 to 2 feet. 



55 B. FLAVE'SCENS (D. C. prod. 4. p. 548.) plant diffuse, 

 quite glabrous, suffruticose at the base ; branchlets tetragonal ; 

 leaves oblong, acute, attenuated at the base ; bristles of stipulas 

 3-5, longer than the sheath ; axillary whorles of flowers few, 

 and one terminal and larger than the axillary ones, the latter in- 

 volucrated by 2-4 floral leaves ; capsule oval, crowned by the 

 lanceolate teeth of the calyx. fj . S. Native of Brazil, where 

 it was collected by Pohl. Spermacoce flavescens, Pohl, in litt. 

 The whole herb is yellowish. The nuts of the immature fruit 

 appear almost indehiscent ; it is, therefore, perhaps a species 

 of Diodia, with the habit of Borreria. 



Yellowish Borreria. Shrub diffuse. 



56 B. SCA'BRIDA (D. C. 1. c.) stem erect, tetragonal, sca- 

 brous on the angles ; leaves lanceolate, acute, with 4 oblique 

 nerves on both sides, scabrous above, and pilose on the nerves 

 beneath ; bristles of stipulas 5, stiffish, longer than the sheath ; 

 whorles of flowers capitate, sessile, terminal, and axillary, ap- 

 proximate ; corolla glabrous ; capsule oblong, glabrous, crowned 

 by the 4 subulate teeth of the calyx. Native of Brazil, where it 

 was collected by Pohl. Spermac6ce scabrida, Pohl, in litt. 

 Corollas one half smaller than in B. asclepiadea. 



Scabrous Borreria. PI. 1 to 2 feet. ? 



57 B. ASCLEI-IA'DEA (Cham, et Schlecht. in Linnaea. 3. p. 320. 

 under Btgelbmia) plant smoothish, suffruticose at the base ; stems 

 erect, tetragonal, glabrous, but downy at the apex, having the 

 angles winged ; leaves lanceolate, acute, glabrous, obliquely 4- 

 nerved on both sides ; bristles of stipulas 3, longer than the 

 sheath, the middle one the longest ; whorles of flowers loosely 

 capitate, terminal, and axillary ; lobes of corolla lanceolate, 

 bearded a little ; capsule elliptic, crowned by the 4 elongated, 

 acuminated teeth of the calyx. Jj . S. Native of the south 

 of Brazil Stipulas 2, revolute. 



Var. ft, glaberrima (D. C. prod. 4. p. 548.) stems and co- 

 rollas glabrous; stipulas furnished with one bristle each. I?. S. 

 Native of equinoctial Brazil. 



Asclepias-like Borreria. Shrub 1 to 2 feet. 



58 B. PERROTTE'TII (D. C. 1. c.) stem herbaceous, tetragonal, 

 with rather rough angles ; leaves oblong-lanceolate, acuminated 

 at both ends, scabrous above, and downy beneath, obliquely 

 nerved ; bristles of stipulas 9, hispid, longer than the sheath ; 

 flowers axillary, verticillate, sessile ; capsule oblong, compressed, 

 crowned by the 4 lanceolate acute connivent teeth of the calyx. 

 Native of French Guiana, where it was collected by Perrottet. 

 Perhaps Sperm. 4spera, Aubl. guian. 1. p. 59. t. 22. f. 6. not 

 of Vahl, but in the present plant the branches are nearly gla- 

 brous. 



Perrottct's Borreria. PI. 1 foot. ? 



59 B. NERVOSA (Pohl, in litt. under Chlorophytum, ex D. C. 

 prod. 4. p. 548.) the whole plant clothed with scabrous pubes- 

 cence ; stems erect, tetragonal, striated ; leaves lanceolate, or 

 oval-lanceolate, acute, obliquely 4-5-nerved on both sides ; sti- 

 pulas cleft into 3-5 linear, acute ligulae; whorles of flowers axil- 

 lary and terminal, sessile ; lobes of calyx 3-4, longer than the 

 ovarium, lanceolate, acuminated, scabrous, a little toothed at 



