ARBORETUM AND FRtJTlCETUM. 



PART in. 



flower in autumn, they are apetalous. The species in question (H. glo- 

 meratum), he says, had, in his garden, its shoots killed back a good way 

 in winter, so that it did not flower till the autumn, and was, therefore, ape- 

 talous, like fig. 69. Had the plant been protected during the winter, it 

 would, most probably, he says, have produced plenty of perfect flowers in 

 spring, as is the case vv'ith H. f^olygalgefolium, H. brasiliense, H. carolinianum, 

 and the other American species. 



B. Peduncles \-fiowered, bractless, situated on the Branches. 



tt. 18. H. brasilie'nse Pers. The Brazilian Helianthemum, or Sun Rose. 



Identification. Pers. Eiich., 2. p.77. ; Swt. Cist., t. 43. ; Don's Mill., 1. p 303. 



Synnnytnes. Cfstus brasili^nsis Lam. Diet., 2. p. 22. ; Ci'stus alternifulius Vahl. Symb., i. p. 38. 



Engravings. Swt. Cist., t. 43. ; and out fig. 70. 



Spec. Char., S^c. SulFruticose. Branchlets simple, 70 

 hairy. Leaves ovate-oblong, acute, sessile, hairy. 

 Peduncles and calyxes hairy, canescent. Pedun- 

 cles solitary, 1 -flowered, inner sepals ovate, a,cumi- 

 nated. {Don's Mill., i. \). 2,0^.) A low shrub, found 

 on the mountains of Brazil, introduced in 1823, 

 and producing bright yellow flowers in June and 

 July. It scarcely reaches 1ft. in height, and might 

 almost be considered as herbaceous. It is rather 

 tender, and is best preserved when grown in pots, 

 and taken into a frame or green-house during the 

 winter. Plants of it were in the Botanic Garden 

 at Chelsea, in 1826, where it flowered in the spring 

 of that year, with petals, as vafig. 70., and in the 

 autumn of the same year, without petals. 



Other Species belonging to this Division of Lechemdes. 



H. ^olygalcefdlium Swt. Cist.,t. IT., from Brazil, in 1823, with white flowers, 

 and growing to the height of half a foot. H. dstylwm Moc. and Sesse, a 

 native of New Spain, has not been introduced ; and H. tripetalum and H. 

 obcordatum Moc. and Sesse, both from Mexico, are also but little kuown 

 to botanists, and not in cultivation in British gardens. 



§ iii. Tuberaria Dec. Prod., i. p. 270. 



Derivation, unknown. 



Sect, Char. Calyx 5-sepaled, 2 outer sepals smaller or larger, usually spreading. 

 Petals yellow, often marked with a dark purple spot at the base of each, 

 entire, denticulated, serrated. Stamens numerous, much longer than the 

 pistil. Style straight, almost wanting. Stigma capitate. Capsule 3-valved. 

 Seeds minute, yellowish. Roots woody or herbaceous. Stems erect or 

 ascendent. {Don's Mill., i. p. 304.) There is only one ligneous species 

 in this section. 



uL 19. PI. LiGNo^suM Sivt. The woody Helianthemum, or Sun Rose. 



Identification. Swt. Cist.,t. 46; Swt. Hort. Brit., p. 469. No. 88. ; Don's Mill, 1. p. 304. 

 Engravings. Swt. Cist., t. 46.; and our fig. 71. 



Spec. Char., Src Stem tetragonal, shrubby, clothed with rough scaly bark. 

 Branches ascending, covered with hispid hairs. Leaves ovate-oblong, 

 ending in the petiole, 3-nerved, also beset with hispid hairs, canescent ; un- 

 der surface nerved, upper surface furrowed ; floral leaves sessile, glabrous, 

 oblong-lanceolate, uppermost ones alternate. Pedicels few, furnished with 

 bracteas at the base, rather panicled, about the length of the calyx. Petals 



