TILIACEJE. XX. ESENBECKIA. XXI. ABLANIA. XXII. GYROSTEMON. XXIII. CHRISTIANA. XXIV. LUHEA. 



556 



7 S. BERTERIA'NA (Chois. mss. D. C. prod. 1. p. 51 6.) leaves 

 ovate, tapering to both ends ; petioles tumid at the base and 

 top ; racemes few-flowered, rather shorter than the petioles. 

 Tj . S. Native of St. Domingo. Rheedia lateriflora, Bert, in 

 litt. Flowers small. 



Bertero's Sloanea. Tree 40 feet. 



Cult. A genus of fine trees with large leaves. They thrive 

 best in a mixture of loam and peat, and ripened cuttings will 

 root in sand, under a hand-glass, in heat. 



XX. ESENBE'CKIA (in honour of Nees Von Esenbeck, 

 Professor of Botany at Bonn on the Rhine, author of numerous 

 botanical memoirs). 



LIN. SYST. Polyandria, Monogynia. Calyx 1 -leaved, tur- 

 binate before flowering, at length saucer-formed, girded by a 

 3-parted deciduous involucel. Petals 5. Stamens numerous, 

 free ; anthers twin. Style 1, crowned by a capitate, 5 -angled 

 stigma. Capsule woody, 5-angled, - 5-valved ; valves with a 

 dissepiment in the middle of each, and covered on the outside 

 with stiff bristles. Seeds 3-6 in each cell, adhering to the dis- 

 sepiment. Albumen fleshy. Embryo straight. Cotyledons 

 leafy. A tall tree 120 feet high, with alternate, oval, retuse 

 quite entire leaves, and lateral many-flowered peduncles. 



1 E. ALTI'SSIMA (Blum. 1. c.). J? . S. Native of Java. Thes- 

 pesia altissima, Spreng. syst. app. p. 257. 



Tallest Esenbeckia. Tree 120 feet. 



Cult, This tree should be propagated and cultivated in the 

 same manner as that recommended for Sloanea. 



XXI. ABLA'NIA (A. Guianensis is named Goulougou-ablani 

 by the Caribbees in Guiana). Aubl. guian. 1. p. 585. t. 234. 

 D. C. prod. 1. p. 516. Trichocarpus, Schreb. gen. no. 923. 



LIN. SYST. Polyandria, Digynia. Calyx 4-5-parted (pro- 

 bably valvate in the bud). Petals wanting. Stamens numerous, 

 with unconnected filaments and roundish anthers. Ovary ovate. 

 Styles 2, bifid. Capsules 4-valved, 1 -celled ; valves covered on 

 the outside with stiff bristles. Seeds numerous, covered with 

 aril, fixed to the free placenta. A genus not sufficiently 

 known, but is allied to Sloanea and lSJ.ru. 



1 A. GUIANE'NSIS (Aubl. guian. 1. p. 585. t. 234.) leaves 

 oblong, waved ; flowers corymbose, fj . S. Native of Guiana 

 in woods. Lam. ill. t. 479. A. laurifolia, Pers. ench. 2. p. 

 81. Trichocarpus laurifolius, Willd. spec. 2. p. 1224. Flowers 

 corymbose, axillary. 



Guiana Ablania. Tree 50 feet. 



2 A. DIGITA'TA (Spreng. syst. append, p. 210.) leaves digi- 

 tate, smooth, shining above ; leaflets oblong, serrulate ; flowers 

 corymbose, t; . S. Native of Brazil at Rio Grande. 



.Digitate-leaved Ablania. Tree 40 feet. 



Cult. These fine trees will thrive well in a mixture of loam 

 and peat ; and ripened cuttings will root in sand, under a hand- 

 glass, in heat. 



XXII. GYROSTE'MON (from ywpoc, gyros, a circle, arrjfjiuv, 

 stemon, a stamen ; in allusion to the stamens being twisted round 

 each other in a circular manner). Desf. mem. mus. 6. p. 1 6. 

 and 8. p. 115. D. C. prod. 1. p. 516. 



LIN. SYST. Dioecia, Polyandria. Flowers dioecious. Calyx 

 spreading, 6-7-lobed. Petals wanting. Stamens in the male 

 flowers numerous, twisted about each other ; filaments wanting ; 

 anthers 4-lobed, 2-celled, seated on a naked receptacle. Ova- 

 ries in the female flowers 20-40, disposed in a whorl around 

 the central axis, each bearing 1 style. Carpels capsular, mem- 

 branous, 2-valved, 1 -seeded. Seeds incurved, transversely 

 striated, adhering to the upper part of the free central axis of the 

 fruit. Embryo incurved, placed at the base of a horny albumen ; 



cotyledons linear, parallel. Smooth, branching shrubs from 

 New Holland. Probably more nearly allied to Malvaceae or 

 Euphorbiacetse. 



1 G. RAMULOSUM (Desf. mem. mus. 6. p. 17. t. 6.) leaves 

 linear, almost sessile. \ . G. Native of New Holland on the 

 sterile islands. Male flowers pale-yellow. This shrub resembles 

 a species of E'phedra when dry. Flowers solitary, axillary. 



Branched Gyrostemon. Clt. 1820. Shrub 1 to 2 ft. 



2 G. COTINIFOLIUM (Desf. mem. mus. 8. p. 116. t. 10.) leaves 

 ovate, roundish, stalked. Tj. G. Native of New Holland at a 

 place called Baye des chiens marins. Flowers in racemes. 



Cotinus-leaved Gyrostemon. Shrub 6 feet. 



Cult. These shrubs will thrive well in a mixture of loam, 

 peat and sand ; and ripened cuttings will root in sand, under a 

 hand-glass. 



XXIII. CHRISTIA'NA (in memory of Christian Smith or 

 Scfimidt, M. D., a young Norwegian botanist of great promise, 

 who went out with Captain Tuckey in his unfortunate expedi- 

 tion to explore the Congo river, on the south-western coast of 

 Africa, where he died, as well as most of the officers and crews). 

 R. Br. congo. p. 9. D. C. prod. 1. p. 516. 



LIN. SYST. Polyandria, Monogynia. Calyx 3-lobed. Pe- 

 tals 5. Stamens indefinite. Capsules 5, capsular, 1 -seeded, 

 connected at the base. This genus is hardly known. It is 

 allied to Ventenatia. 



1 C. AFRICA'NA (D. C. prod. 1. p. 516.). ^ . S. Native of 

 Africa at the river Congo, where it was detected by the unfor- 

 tunate Christian Smith. 



African Christiana. Shrub. 



Cult. If ever this shrub should be introduced into Europe, 

 we would recommend its being grown in a mixture of loam, peat 

 and sand ; and ripened cuttings will probably root in sand, under 

 a hand-glass, in heat. 



XXIV. LUHE'A (in honour of Charles Van der Luhe, a 

 German botanist, who has wrote on the plants of the Cape of 

 Good Hope). Willd. act. soc. nat. scrut. berol. 3. p. 409. t. 5. 

 Luhea et Alegria, D. C. prod. 1. p. 517. 



LIN. SYST. Polyadelphia, Polyandria. Involucel short, 6-9-12- 

 parted. Calyx 5-parted. Petals 5, with anadnate gland at the claw- 

 on the inner side. Stamens numerous ; filaments awl-shaped, pilose 

 at the base, and are joined at the bottom into 5 bundles. Stamen 

 scales, or nectaries 5, pencilled or fringed ; anthers-roundish, 

 2-celled, at length versatile. Style thick, gradually dilated from 

 the base to the apex. Stigma 5-lobed, perforated, papillose. 

 Capsules 5-angled, 5-celled, 5-valved, with a dissepiment in the 

 middle of each valve, few or many-seeded. Seeds disposed in 

 2 rows on the margins of the dissepiments, winged at the apex. 

 Albumen fleshy. Cotyledons leafy. This is a fine genus of 

 trees, allied on the one side to Gremia and on the other to 

 Apeiba. Leaves alternate, distich, on short footstalks with pro- 

 minent nerves beneath. Flowers sometimes solitary, terminal, 

 but usually dichotomously branched ; cymes axillary and ter- 

 minal, frequently panicled and racemose. Bracteas under the 

 forks. Pili stellate. Calyx valvate, and petals twisted in aesti- 

 vation. Corolla white, rarely red. 



1 L. SPECIOSA (Willd. 1. c. and spec. 3. p. 1434.) leaves ovate, 

 blunt, unequally toothed, smooth above and hoary beneath, 3- 

 nerved ; racemes terminal, simple, few-flowered. Tj . S. Na- 

 tive of Brazil. Flowers white. 



Sheny Luhea. Tree 30 feet. 



2 L. DENSIFLORA (St. Hil. fl. bras. 1. p. 294.) leaves broad- 

 obovate, short-acuminate, quite entire at the base, pale-rufes- 

 cent beneath ; flowers disposed as if they were in a crowded 



