GENTIANE.E. XXX. COCTOUBEA. XXXI. ADENEMA. XXXII. SCHCBLERIA. 



201 



the genus Coutoubea ; in the capsule being 2-celled.) Capsule 

 2-celled, in consequence of the edges of the valves being bent 

 into the central placenta ; margins of valves placentiferous. 

 Anthers remaining unchanged even in the old state. 



XXX. COUTOU'BEA (the Caribbean name of one of the 

 species.) Aubl. guian. 1. p. 72. Cotubea, Mart, nov, gen. 

 bras. 2. p. 110. E'xaciim species, Vahl. 



LIN. SYST. Tetratidria, Monogynia. Calyx campanulate, 

 4-parted. Corolla salver-shaped, with an equal cylindrical tube, 

 a naked throat, and a 4-parted limb. Stamens 4, exserted ; 

 filaments bidentate at the base ; anthers sagittate, unchanged 

 in the dried state. Stigma bilammellate. Capsule 2-celled, 

 2-valved, many-seeded ; seeds very minute. Glabrous herbs 

 or subshrubs, erect, rarely tw ining. Stems obscurely tetragonal, 

 usually branched; branches opposite, and thickened at the 

 nodi. Leaves opposite, decussate, sessile, 1 -nerved, thinnish, 

 veined. Flowers disposed in terminal and lateral spikes or 

 racemes, dense or loose, tribracteate, white. 



* Flowers tetramerotu. 



1 C. DEKSIFLORA (Mart. nov. gen. bras. 2. p. 111. t. 185.) 

 stem simple at bottom ; leaves sessile, rounded at the base, and 

 half stem-clasping, lanceolate, long-acuminated ; spikes ter- 

 minal and lateral, cylindrical, dense-flowered : throat of corolla 

 irrorate. Q. S. Native of Brazil, in the province of Bahia, 

 in dry fields, at Villa da Caxoeira, at the altitude of from 200 

 to 400 feet. Corolla with a green tube ; throat bedewed with 

 black ; limb white. 



Dense-jloirered Coutoubea. PI. 2-3 feet. 



i C. SPICA'TA (Aubl. guian. 1. p. 72. t. 27.) stem erect, 

 branched ; leaves lanceolate, acuminated at both ends ; spikes 

 terminal, elongated, loose ; flowers decussate, rather close toge- 

 ther. . S. Native of Cayenne, Guiana ; in the northern 

 part of Brazil, as of Maranham and Para, &c. Meyer, ess. p. 87. 

 Cotubea spicata, Mart. nov. gen. bras. 2. p. 112. Coutoubea 

 alba, Lam. ill. 2. p. 319. t. 79. E'xacum spicatum, Vahl. symb. 

 3. p. 17. Corollas white, reddish in the throat. 



Spicate-Qon-ered Coutoubea. Fl. July, August. Clt. 1823. 

 PI. 2-3 feet. 



3 C. RAMOS A (Aubl. guian. 1. p. 74. t. 28.) stem divaricately 

 branched ; leaves oblong-lanceolate, acuminated at both ends ; 

 spikes terminal and axillary, the lower part leafy ; flowers 

 decussate, remote. 0. S. Native of Guiana and Brazil, in dry 

 fields. Cotubea ramosa, Mart. nov. gen. bras. 2. p. 112. 

 E'xacum ramosum, Vahl. symb. 3. p. 17. Corollas white. 



Branched Coutoubea. Fl. June, July. Clt. 1824. PI. 1-2 

 feet. 



4 C. MINOR (H. B. et Kunth, nov. gen. amer, 3. p. 181.) 

 stem dichotomous ; branches tetragonal ; leaves oblong, acute ; 

 spikes terminal, flowers decussate. S. Native in humid 

 places, on the banks of the Orinoco, near the falls of Ature. 

 Corolla white. 



Smaller Coutoubea. PI. -^ foot. 



* * Flowers pentamerous. 



5 C. VERTICILLATA (G. Don, in Loud. hort. brit. p. 48.) 

 stem simple ; leaves lanceolate, acuminated at both ends, 

 nerved ; flowers verticillate, axillary : calycine segments longer 

 than the capsule. . S. Native of the West Indies. Gentiana 

 verticillaris, Lin. spec. 333. E'xacum verticillatum, Willd. spec. 

 1. p. 640. Plum. icon. 81. f. Z. Corollas white. 



JTAorfed-flowered Coutoubea. Fl. June, July. Clt. 1818. 

 PL 1J foot. 



6 C. VOLC'BIXIS (Mart. nov. gen. bras. 2. p. 112.) stem 

 twining, rather scandent, slender ; leaves lanceolate, long-acu- 

 minated, acute at the base ; spikes terminal, few-flowered ; 



VOL. IV. 



flowers pentandrous, pentamerous, remote. 1J. w . S. Native 

 of St. Domingo. Lisianthus scandens, Spreng. syst. 1. p. 587. 

 Corollas cream-coloured. 



Training Coutoubea. Shrub twining. 



Cult. The species of Coutoubea are of easy culture, requiring 

 the same treatment as other tender annuals. 



XXXI. ADENE^MA (from aiji>, aden, a gland ; and rrjfia, 

 nema, a. filament ; filaments furnished with a swelled gland at 

 the insertion of each). Gentiana and E'xacum species of 

 authors. 



Liu. SYST. Penlandria, Monogynia. Calyx 5-parted. Corolla 

 funnel-shaped, 5-cleft. Stamens 5 ; filaments short, each fur- 

 nished with a gland at its insertion ; anthers incumbent, inclosed. 

 Style single, length of filaments ; stigma large, 2-lobed. Cap- 

 sule 1-celled, 2-valved ; seeds scobiform, fixed to parietal, 

 linear placentas, which adhere to the margins of the valves. 

 An erect, perennial plant, with creeping roots ; sessile, 

 lanceolate, opposite, decussate, 3-nerved leaves ; tetragonal, 

 simple stems ; and axillary, sessile, small white flowers, gene- 

 rally 3 in the axils of each leaf, and therefore appearing as if 

 they were verticillate. 



1 A. HYSSOPIFOLIDM ; I/ . S. Native of the East Indies, in 

 moist uncultivated grounds, flowering during the wet season. 

 Gentiana verticillata, Linn, suppl. 1 74. E'xacum hyssopifblium, 

 Willd. spec. 1. p. 640. Burm. afr. t. 74. f. 3. 



Hyssop-leaned Adenema. PI. -J to 1 foot. 



Cult. This is a plant of easy culture. Any light rich soil 

 will suit it ; and it will be readily increased by dividing the 

 plant at the root. It should have plenty of water given to it 

 when in a growing state. 



XXXII. SCHUBLFRIA (named after Gustavus Schubler, 

 professor of botany at Tubingen). Mart. nov. gen. bras. 2. 

 p. 113. Curtia, Schlecht, in Linnaea, 1. p. 209. Thurnhausera, 

 spec. Pohl. in litt. 



LIN. SYST. Pentamdria, Monogynia. Calyx 5-parted. Co- 

 rolla tubularly-subcampanulate, equal, with a 5-cleft limb, and 

 a naked throat. Stamens 5, minute ; anthers oblong. Stigma 

 simple, penicillately glandular. Capsule 2-valved, 2-ceUed, 

 many-seeded. Seeds ovate or obovate, minute, angular. 

 Annual, erect, glabrous, slender herbs. Stems tetragonal, sim- 

 ple, or branched ; branches opposite, dichotomous. Leaves 

 sessile, opposite, or verticillate, narrow. Inflorescence panicled, 

 loose, or crowded, terminal and lateral ; peduncles bracteolate. 

 Flowers small, rose-coloured, or yellow. 



1. S. DIFFU'SA (Mart. 1. c. p. 114. t. 186. f. 1.) stem slender, 

 spreadingly pauicled ; leaves subpetiolate, 3-4 in a whorl, 

 ovate, acute ; corollas hardly twice longer than the calyx ; seg- 

 ments ovate-roundish. 0. S. Native of Brazil, on the ascent 

 of high mountains, in marshy, grassy places, at the altitude of 

 4000 feet. E'xacum brachiatum, Spix et Mart. reis. 1. p. 397. 

 Corollas yellow ; throat constricted, downy inside. 



Diffuse Schubleria. PI. to f foot. 



2 S. CONFE'RTA (Mart. 1. c. p. 115. 1. 186. f. 2.) stem straight, 

 terminated by a short, crowded, panicle ; leaves sessile ; 3-4 

 in a whorl, broad, ovate, acute ; corolla hardly twice as long as 

 the calycine segments, which are setaceous ; segments of corolla 

 ovate, obtuse. Q. S. Native of Brazil, in the mine provinces, 

 in marshes, particularly on Serro Frio. Corollas yellow. 



Crowded Schubleria. PI. | foot. 



3 S. STRATA (Mart. 1. c. p. 116. t. 187.) stem straight, simple 

 at bottom ; leaves 4-6 in a whorl, ovate, acuminated, 3-nerved ; 

 panicles corymbose, coarctate ; corolla more than twice as long 

 as the calyx : with rounded segments. . S. Native of 

 Brazil, in humid places, near Tejuco, and elsewhere in the dia- 

 mond district ; also on Serra de St. Antonia. Sabbatia verti- 



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