632 



RUBIACEJE. CXCVI. STAELIA. CXCVII. TESSIERA. CXCVI1I. GAILLOKIA. CXCIX. MACHAOKIA. 



base by a line from the dissepiment, and therefore falling asunder. 

 Seed solitary, fixed to the dissepiment. Brazilian herbs, with 

 terete stems. Leaves glabrous, linear, opposite, and in axillary 

 fascicles. Stipulas membranous, narrow, of many bristles, or 

 acutely 3-lobed. Axillary heads of flowers verticillate, and the 

 terminal ones globose. Allied to Mitracdrpum. 



1 S. TIIYMOIDES (Cham. 1. c.) stem much branched, ascend- 

 ing, puberulous ; stipulas acutely 3-lobed ; whorles of flowers 

 few. If. S. Native of the south of Brazil. Leaves 5 lines 

 long, and hardly a line broad. Corolla purple. Heads of flowers 

 size of small peas. 



Thyme-like Staelia. PI. i to | foot. 



2 S. GALIOIDES (D. C. prod. 4. p. 573.) stems glabrous, 

 sparingly branched, twiggy, elongated ; stipulas of many bristles ; 

 whorles of flowers few. Native of Brazil, where it was collected 

 by Pohl. Spermacoce galioides, ex Pohl, in litt. Leaves an 

 inch long, and half a line broad. Whorles of flowers distant at 

 the top of the stem. 



Galium-like Staelia. PL -j foot. 



3 S. REFLE'XA (D. C. 1. c.) stems smoothish, much branched ; 

 branches twiggy ; leaves linear, with rather revolute margins ; 

 stipulas tridentate ; whorles in nearly all the axils ; floral leaves 

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

 Spermacoce reflexa, Pohl, in litt. Whorles 20-30 on each 

 branch. Leaves 4 lines long. 



Reflexed-\eaved Staelia. PI. to 1 foot. 



Cull. See Richardsonm, p. 628. for culture and propagation. 



CXCVII. TESSIE'RA (named after M. Tessier, who has 

 written on the diseases of wheat, and the effects of light upon 

 plants, &c.). D. C. prod. 4. p. 574. 



LIN. SYST. Tetrandria, Monogy'nia. Calyx with an ovate 

 tube, and a 4-lobed limb ; lobes nearly equal, without any acces- 

 sory ones. Corolla funnel-shaped, with a glabrous throat, and a 

 4-lobed limb. Stamens hardly exserted. Stigma 2-lobed. Cap- 

 sule 2-celled, 2-valved, with an entire oval deciduous dis- 

 sepiment ; valves concave, crowned by the teeth of the calyx, 

 falling asunder from being cut vertically along the dis- 

 sepiment. Seeds solitary in the cells, fixed to the middle 

 dissepiment. American herbs, clothed in every part, except the 

 corollas, with tomentum or wool. Leaves opposite, sessile, 

 lined by the nerves. Stipulas cleft into many bristles. Flowers 

 axillary, sessile, few, verticillate, bracteolate. This genus is 

 nearly allied to Staelia from the structure of the fruit, but to 

 Borreria or Diodia from habit. 



1 T. LANIFERA (D. C. prod. 4. p. 574.) plant clothed with 

 long white wool ; stem or branches twiggy, terete. Native 

 of Brazil, where it was collected by Pohl. Diodia or Sper- 

 macoce lamfera, Pohl, in litt. 



Wool-bearing Tessiera. PI. 



2 T. LITHOSPERMOIDES (D. C. prod. 4. p. 574.) plant suffruti- 

 cose, erectish, branched, grey in every part from crowded short 

 velvety down ; fruit at length glabrous, fj . ? TJ..1 S. Native 

 of Mexico,^ where it was collected by Haenke. Spermacoce 

 lithospermoides, Bartl. in herb. Haenke. 



Lithospermum-like Tessiera. PI. 1 foot. ? 



Cult. For culture and propagation, see Richardsbnia, p. 628. 



CXCVIII. GAILLO'NI A (evidently named after some person 

 of the name of Gaillon, of whom we know nothing). A. Rich. mem. 

 soc. hist. nat. par. 5. p. 153. t. 15. f. 34. D. C. prod. 4. p. 574. 



LIN. SYST. Penl-Heptdndria, Monogynia. Calyx with an 

 ovate tube, and a 5-7-lobed permanent limb ; teeth unequal. Co- 

 rolla funnel-shaped, with a terete tube, and a 5-7-lobed limb ; 

 lobes oblong. Stamens 5-7, exserted from the throat, but 

 shorter than the corolline lobes. Style filiform, thickened at the 

 apex ; stigma 2-lobed. Fruit egg-shaped, almost naked at the 



apex, containing 2 separable, 1-seeded, indehiscent nuts. 

 Hard, oppositely-branched herbs, velvety from fine down in every 

 part, as also on the corollas. Leaves linear, ending in a cal- 

 lous mucrone, opposite, bearing twin stipulas on both sides, 

 which are sometimes short and truly stipula-formed, and some- 

 times long and foliaceous, and in the latter case appearing like 

 those of Galinm. Flowers some in the forks 'of the branches, 

 sessile, solitary, and naked, and others sessile at the tops of the 

 branches, between the 2 superior leaves. Habit of Asperula, 

 with a velvety aspect. This genus ought probably to be placed 

 among Rubiacece, sect. Stellatce. 



1 G. OLIVE'KII (Rich. 1. c.) stem multiple, brachiate, and as 

 if it was articulated ; branches opposite ; leaves distinct at the 

 base, linear-subulate, spinescent at the apex ; stipulas leaf- 

 formed, distinct from the leaves. ^.? !.? F. Native of 

 Persia, between Teheran and Ispahan, where it was collected by 

 Olivier and Bruguiere. 



Olivier's Gaillonia. PI. ^ foot. ? 



2 G. BRUGUIE'RII (A. Rich. 1. c.) stem multiple; leaves linear- 

 lanceolate, fj . ? If. . ? S. Native along with the preceding, 

 and probably only a broad-leaved variety of it. 



Bruguiere's Gaillonia. PI. -J foot. ? 



3 G. SZOWITZII (D. C. prod. 4. p. 574.) stem branched at 

 top; branches erect : leaves subulate ; upper ones connate at the 

 base, and adhering to the stipulas, and therefore appearing tri- 

 furcate and trispinose at the apex. I/ . F. Native of Persia, 

 in very arid, stony places near Nekhitcheven, where it was col- 

 lected by Szowitz. A very distinct species. 



Szorvitz's Gaillonia. PI. ^ foot. 



Cult. The species of Gaillonia should be grown in pots, half 

 filled with pot-sherds, in a mixture of sand and peat, and placed 

 among other alpine plants. They may be increased either by 

 cuttings or seeds. 



CXGIX. MACHAO V NIA (named after Machaon, an eminent 

 hero and physician, who, with his brother Podalyrius, accom- 

 panied the Grecian army in the expedition against Troy, and 

 performed great services among the troops). Humb. et. Bonpl. 

 pi. equin. 1. p. 101. t. 29. H. B. et Kunth, nov. gen. amer. 3. 

 p. 350. Juss. mem. mus. 6. p. 382. Cham, et Schlecht. in Lin- 

 nsea. 4. p. 2. A. Rich. mem. soc. hist. nat. par. 5. p. 161. D. 

 C. prod. 4. p. 574. 



LIN. SYST. Pentdndria, Monogynia. Calyx with an obovate 

 tube, and a small 5-parted limb. Corolla funnel-shaped, 5-cleft, 

 with a short tube, and a villous throat. Stamens 4, inserted in 

 the throat, exserted ; anthers rather cordate. Stigma bipartite. 

 Capsule oblong-cuneated, rather tetragonal, crowned by the 

 limb of the calyx, 2-celled, separable into 2, 1-seeded, indehis- 

 cent, ligneous-coriaceous, trigonal nuts, which are fixed inter- 

 nally to the linear axis beneath its apex. Seeds solitary in the 

 cells, pendulous. Radicle superior. Albumen fleshy. Shrubs 

 or trees natives of South America. Leaves opposite, petiolate, 

 acuminated. Stipulas interpetiolar, solitary on both sides. Pani- 

 cles sub-corymbose, terminal. Flowers white, hardly larger than 

 those of Asperula. 



1 M. ACUMINA'TA (Humb. et Bonpl. pi. equin. t. 29.) un- 

 armed ; leaves ovate-elliptic, short-acuminated, downy on both 

 surfaces. ^ . S. Native in the town of Guayaquil, by way 

 sides, where it is called Ceiba-blanca by the natives. H. B. et 

 Kunth, nov. gen. amer. 3. p. 350. Flowers white. 



Acuminated-leaved Machaonia. Tree 25 feet. 



2 M. BRASILIE'NSIS (Cham, et Schlecht. in Linnaea. 4. p. 2.) 

 unarmed ; leaves oblong-lanceolate, acuminated, having the 

 veins downy beneath, t? . S. Native at the mouth of the 

 Amazon, about Gran-Para. Cinch6na Brasiliensis, Hoffmanseg. 

 ex Willd. mss. in Humb. berl. mag. p., 11 9. Rcem. et Schultes, 



