FRANKENIACE^E. II. BEATSONIA. III. LUXEMBURGIA. IV. SAUVAOESIA. 



377 



should be planted under a hand-glass in sand, by seeds, or by 

 dividing at the roots. 



II. BEATSO'NIA (Mr. Beatson, who wrote an account of 

 the island of St. Helena.) Roxb. fl. St. hel. in Beats, trav. p. 

 300. D. C. prod. 1. p. 350. 



LIN. SYST. Hexandna, Monogynia. Style bifid; lobes crowned 

 by globular stigmas. Capsules 2-valved, few-seeded. Perhaps 

 sufficiently distinct from Frankenia. 



I B. PORTULACOI'DES (Beats, itin. p. 300.) leaves roundish, 

 fleshy, glabrous ; stem shrubby, bushy. Tj . G. Native of St. 

 Helena on rocks by the sea-side on the south side of the island. 

 Frankenia portulacaefolia, Spreng. syst. 2. p. 1 34. Flowers red ? 



Purslane-like Beatsonia. Shrub foot. 



Cult. This plant will thrive well in a mixture of peat and 

 sand, and cuttings will root readily in the same kind of mould 

 under a hand-glass. 



SECT. II. SAUVA'GE^E (plants agreeing with Sauvagesia in 

 having a spreading calyx and corolla). Calyx of 5 equal (f. 76. 

 a. f. 77. a.) or unequal spreading sepals. Petals 5, equal or 

 unequal, spreading, usually with a 5-leaved (f. 76. d.) or tubular, 

 5-toothed (f. 77. rf.), urceolus or inner corolla, situated between 

 the petals and stamens in Sauvagesia, and inclosing the stamens 

 in Larradia. Style simple. Elegant plants with alternate leaves 

 and feathery stipulast 



III. LUXEMBU'RGIA (in honour of M. Le due de Luxem- 

 bourg, under whose auspices M. Auguste St. Hilaire commenced 

 his voyage to Brazil). St. Hil. mem. mus. 9. p. 351. and 12. 

 p. 83. Plectanthera, Mart. fl. bras. 1. p. 40. 



LIN. SYST. Octo-Polyandria, Mnnogynia. Calyx of 5, un- 

 equal, deciduous sepals. Petals 5 (f. 75. e.) rather unequal, 

 deciduous. Anthers inserted on a short gynophore with the 

 pistil, almost sessile, definite, or usually indefinite, linear, quadra- 

 gonal, 2- celled, bursting at the apex by 2 pores, adglutinated into 

 a mass on one side, usually clasping the ovary, deciduous, but 

 the rudiments of the filaments are permanent. Style declinate, 

 pyramidately -subulate, crowned by a simple or rarely 3-parted 

 stigma. Ovary sessile or ,on a short stalk (f. 75. d ), oblong, 

 triangular. Capsule 1-celled, many-seeded, 3-valved (f. 75. d.); 

 valves bent inwards at the edges, more or less, and bearing the 

 seeds on the margins. Seeds numerous, oblong, girded by a 

 membrane which is broadest at the top, with a double covering, 

 both membranous. Umbilicus at the narrowest extremity of 

 the seed. Albumen fleshy. Embryo slender, straight, with the 

 radicle almost touching the umbilicus. Elegant, branched, 

 smooth shrubs, with the habit of some species of Rhododendron. 

 Leaves alternate, toothed, mucronate, oblong, elegantly lined. 

 Stipulas lateral, twin, caducous FIG 75 



or permanent, setaceously-ciliated. 

 Flowers beautiful yellow, disposed 

 in terminal racemes or corymbs. 

 Peduncles jointed above the base, 

 furnished with 2 bracteas. 



1 L. SPECIOSA (St. Hil. mem. 

 mus. 12. p. 86. t. 3.) leaves almost 

 sessile, oblong, obtuse, tapering to 

 the base ; flowers large, disposed 

 in racemes ; stamens numerous. Tj . 

 S. Native of Brazil on mountains 

 near Milhoverde at the height of 

 3700 feet. (f. 75.) 



Sheniy Luxemburgia. Fl. Oct. 

 Shrub 3 to 4 feet. 



2 L. CORYMBOSA (St. Hil. in 



mem. mus. 12. p. 87. t. 4.) leaves on short footstalks, oblong, 

 VOL. i. PART iv. 



narrow, acutish, cuneated and tapering at the base ; flowers 

 large, few, disposed in corymbs; stamens numerous. T? . S. 

 Native of Brazil on the mountains called Serra da Caraca, at 

 the height of 6000 feet, by the sides of rivulets. 



Corym&ewe-flowered Luxemburgia. Fl. Feb. Sh. 5 to 6 ft. 



3 L. POLYA'NDRA (St. Hil. mem. mus. 12. p. 88.) leaves 

 stalked, oblong-elliptical, rather cuneated at the base ; flowers 

 middle-sized, disposed in racemes ; stamens numerous. Tj . S. 

 Native of Brazil in the province of Minas Novas on mountains. 

 The specific name is very inapplicable, as the two preceding 

 species are polyandrous as well as this plant. This shrub is 

 called Congoha do Campo and Mate do Campo in Brazil. 



Polyandrous Luxemburgia. Shrub 4 to 5 feet. 



4 L. OCTA'NDRA (St. Hil. in mem. mus. 9. p. 351. and 12. p. 

 89.) leaves almost sessile, oblong-elliptical, narrow, somewhat 

 cuneated at the base ; flowers small, disposed in racemes ; sepals 

 ciliated; stamens definite, 7-12. Tj . S. Native of Brazil 

 with the preceding. Plectanthera floribunda, Mart. fl. br. 1. 

 p. 40. t. 26. 



Octandrous Luxemburgia. Fl. Feb. Shrub 2 to 6 feet. 



Cult. Luxemburgia is a genus of truly elegant shrubs, with 

 large beautiful yellow flowers, and serrated, shining, stiff" leaves, 

 having the habit of some species of Rhododendron. None of 

 the species have been introduced to the gardens of Europe, there- 

 fore the mode of cultivating and propagating them in the gar- 

 dens is unknown ; but should any person be fortunate enough 

 to introduce them in a living state, we recommend their being 

 grown in a mixture of loam and sandy peat, giving them plenty 

 of water in the summer season. Young cuttings will no doubt 

 root freely in a pot of sand, with a bell-glass placed over them, 

 in heat. 



IV. SAUVAGFSIA (so called by Linnaeus in honour of his 

 distinguished friend and correspondent Francis Boissier de Sau- 

 vages, a celebrated physician of Montpelier, and inventor of 

 modern nosology, died in 1767). Lin. gen. no. 112. Jacq. 

 amer. p. 77. D. C. prod. 1. p. 315. St. Hil. in mem. mus. 11. 

 p. 97. 



LIN. SYST. Pentandria, Monogynia. Calyx deeply 5-parted 

 (f. 76. a.), spreading, permanent, closed when in fruit. Outer 

 petals 5 (f. 76. &.), equal, spreading, obovate, deciduous. Inner 

 petals (scales ?) 5 (f. 76. d.}, opposite the outer ones, erect, 

 with incumbent margins, conniving into a tube, permanent, with 

 filiform appendages between the outer and inner corolla (f. 76. 

 c.), which are indefinite or definite in number, they are perma- 

 nent and dilated at the apex. Stamens 5, permanent, alternating 

 with the petals ; filaments very short, adhering to the base of 

 the inner petals ; anthers fixed by their base, linear, 2-celled, 

 opening laterally at the apex. Style erect, crowned by a blunt 

 hardly manifest stigma. Ovary superior (f. 76. e.\ 1-celled, 

 many-seeded. Capsule oblong or ovate-oblong, acutely 3- 

 lobed, rarely ovate and bluntish as in S. tenella, more or less 

 profoundly 3-valved, empty above. Seeds disposed in two 

 rows on the margins of the valves, minute andfavosely-scrobicu- 

 late. Albumen fleshy. Radicle pointing towards the umbilicus, 

 longer than the cotyledons. Elegant, smooth subshrubs, rarely 

 herbs. Leaves simple on short petioles, rarely sessile. Stipulas 

 lateral, twin, ciliated, permanent. Flowers axillary, or disposed 

 in terminal racemes, sometimes bracteate, white, rose, or violet- 

 coloured. Parts of flowers twisted in the bud. 



1 S. RACEMOSA (St. Hil. in mem. mus. 11. p. 98.) stem 

 shrubby, almost simple ; leaves elliptical-oblong or elliptical- 

 ovate or ovate, acutish, toothed ; Stipulas ciliated, curled ; ra- 

 cemes terminal, almost simple ; segments of calyx acute, shorter 

 than the corolla ; filiform appendages numerous. Pj . S. Native of 

 Brazil in humid pastures or marshes in the provinces of St. Paul 

 3C 



