CHAP. XI. 



C1STA CE^. 



1-1 ELI A NTHIiMUM. 



335 



obovate, distinct, spreading. (Don's Alii/., i. 

 p. 301.) A shrub about a foot high, a native 

 of* the south of Europe, producing its yellow 

 flowers in July and August. Introduced in 

 1809, by Mr. George Don, in whose father's 

 garden, at Forfar, it was cultivated for many 

 years ; but whence he obtained the seeds Mr. 

 Don is uncertain. It is a very curious species, 

 and merits a place in collections of the genus. 



§ iv. Eriocarpum Dec. Prod., i. p. 273. 



Derivation. From erion, wool, and karpos, a fruit ; because the 

 capsules are pilose. 



Sect. Char. Calyx of 5 sepals. Sepals beset with 

 silky hairs on the outside, or rather tomentose, 

 shining on the inside ; the 2 outer ones minute, 

 linear, the 3 inner ones ovate, furnished with 

 4 — 5 stripes. Petals a little longer than the calyx. Style erectish, bent 

 at the base. Ovary pilose, or villous. Capsule pilose. Seeds numerous, 

 rufescent, small. Subshrubs with round branches, younger ones clothed 

 with cinereous pubescence. Leaves opposite and alternate, bluntish ; under 

 surface cano-cinereous. Stipules linear, shorter than the footstalks. Ra- 

 cemes secund, small, opposite the leaves. Flowers crowded, small, sessile, 

 or larger on short pedicels. (Don's Mill., i. p. 306.) Erect and trailing 

 undershrubs. 



n. '20. H. Li'ppu Pers. Lippi's Helianthemum, or Sun Rose. 



Synonyme. 6'istus Lippu Lin. Mant, 245. 



Spec. Char., 8fc. Stem erect, pubescent, whitish, somewhat bifid, or dichotomous. Leaves opposite 

 and alternate, on short footstalks, elliptic-lanceolate, or linear, oblong, obtuse, rather scabrous, 

 glaucescent; under surface canescent; stipules narrow, erect, of the length of the footstalks. Racemes 

 short. Flowers sessile, crowded, bracteate at the base. Bracteas very minute. (Don's Mill., i. p. 

 306.) A shrub, a native of Egypt, brought to England in 1820, growing to the height of 1 ft., and 

 producing its yellow flowers in June or July. 



a. 21. H. sessiliflo v rum Pers. The sessile-flowered Helianthemum, or 

 Sun Rose. 



Identification. Pers. Syn., 2. p. 78. ; Don's Mill., 1. p. 306. 



Stjnonymes. Cfstus sessilifldrus Desf. Fl. Atl., 1. p. 427. t. 106. 



Engraving. Desf. Fl. Atl., 1. t. 106. 



Spec. Char., 8fc. Erect, much branched. Branches pubescent. Leaves opposite and alternate, linear, 

 clothed with very short cinereous tomentum, with revolute margins. Stipules linear, small. Ra- 

 cemes short. Flowers sessile, furnished with minute bracteas. (Don's Mill., i. p. 306.) A shrub, 

 growing from 1 ft. to 2 ft. high, in the north of Africa, on arid hills. It produces its yellow flowers 

 in July and August, but has not yet been introduced into England. 



**- 22. H. kahi'ricum Del. The Cairo Helianthemum, or Sun Rose. 



Identification. Del. Fl. JEgyp., t. 31. f. 2. ; Don's Mill., 1. p. 307. 



Synonyme. Cistus stipulatus /3 Fo?sk. JEgyp., 101. 



Engraving. Del. Fl. -Egyp., 93. t. 31. f. 2. 



Spec. Char., %c. Stem much branched, twisted at the base. Branches ascendant. Lower leaves op- 

 posite, the rest alternate, obovate, with revolute margins, hoary, stipulate ; under surface nerved 

 Racemes secund. Flowers on short pedicels. Pedicels and calvxes villous. Sepals acute. Cap 

 sule oblong, villous. (Don's Mill., i. p. 307.) A shrub 1 ft. high/brought from Egypt in 1820, and 

 producing its yellow flowers in June and July. 



§ v. Fum an a Dec. 



Derivation unknown. 



Sect. Char. Calyx twisted at the apex before expansion, 5-sepaled ; 2 outer 

 sepals narrow, small ; 3 inner ones ovate, acuminated, 4 — 5-veined, with 

 scarious margins. Petals yellow, small, almost twice the length of the 

 sepals. Stamens few. Style straight, rather longer than the stamens ; 

 when in flower oblique, after flowering erectish. Stigma capitate, fringed, 

 somewhat 3-lobed. Capsule 3-valved, open, spreading. Seeds few, 

 blackish or rufescent, angular. Stems suffruticose, Leaves linear, sessile, 



B B 



