37 



HELIANTHEMUM sulphureum 



Sulphur-coloured Sun-Rose. 



Sect. IX. EUHELIANTHEMUM. Suprafol.l. 

 ** Petalis albis, roseis, rubris vel dilutd sulphureis. 



H. sulphurcum, caulibus ramosis procumbentibus scabriusculis to- 

 ment3osiusculis subincanis, foliis lanceolatis planis supra viridibus 

 subtus pallidioribus utrinque stellato-pubescentibus, slipulis foli- 

 aceis aiigusto-lanceolatis acutis ciliaiis petiolo triple longioribus, 

 racemo terminal! paucifloro, calycibus membranaceis striatis gla- 

 briusculis nitidis, petalis obovatis crenulatis patentibus distinctis. 



Helianthemum sulphureum. Willden. enum. supp. 39. DC.prodr. 1. 

 p. 283. n. 107. Spreng. syst. vey. 2. p. 593. n. 90. Swt. hort. sub. 

 lond. p. 124. n. 41. Hort. brit. p. 36. w. 81. 



Stems suffruticose, procumbent, branching in all di- 

 rections : branches rough, occasioned by little tubercles 

 or warts, on which little fascicles of hairs have been 

 seated, the upper part clothed with a thin loose tomen- 

 tum. Leaves ft&t, opposite, petiolate, lanceolate, acute, 

 or the lower ones obtuse, dark green on the upper side, 

 and paler underneath, both sides clothed with fascicles 

 of hairs, which are stellately spreading, margins rough 

 and uneven. Petioles short, warted, flat on the upper 

 side, and rounded on the lower. Stipules leaf-like, nar- 

 rowly lanceolate, acute, ciliate, about 3 times longer 

 than the footstalk of the leaf, green on both sides. 

 Racemes terminal, few-flowered, nodding before the 

 expansion of the flowers, then becoming erect. Bractes 

 lanceolate, acute, ciliate, rather more than half the 

 length of the pedicles. Pedicles tomentose, nodding 

 before expansion, erect when expanded, afterwards re- 

 flexed. Calyx of 5 sepals; the two outer ones very 

 small, narrowly lanceolate, oblique, acute, fringed, pur- 

 ple at the base, the upper part green: inner ones nar- 

 rowly ovate, acute, concave, membranaceous, strongly 



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