(393 ) 
HELIANTHEMUM* *. 
Linnean Class and Order. Polya'ndria f, Monoc y'nia. 
Natural Order. Cisti'ne.'e, D. C. Prod. v. i. p. 263. — Lindl. 
Syn. p. 36. ; lntrod. to Nat. Syst. of Bot. p.151. — Loud. Hort. 
Brit. p. 500. — Don’s Gen. Syst. of Gard. and Bot., v. i. p. 297. — 
Mack. FI. Hibern. p. 33.— Hook. Brit. FI. (4th edit.) p. 398.— 
Cista'cEjE, Loud. Arb. et Frutic. Brit. p. 316 . — Cisteae, Rich, by 
Macgilliv. p. 503 . — Cisti, Juss. Gen. PI. p. 294. — Sm. Gram, of 
Bot. p. 156 . — Rosales; subord. Rhceados ,-e ; sect. Cistinaj; 
subsect. Cistianae ; type, Cistace.e ; Burn. Outl. of Bot. v. ii. 
pp. 614, 784, 792, 798, & 801 .— Rotaceae, Linn. 
Gen. Char. Calyx (see fig. 3.) of 3 equal, concave, permanent, 
partly membranous sepals, with 2 occasional external ones, which 
are usually smaller than the other 3, very rarely larger. Corolla 
(see fig. 1.) of 5, equal, roundish, spreading petals, with short claws 
(fig. 2.), much larger than the calyx. Filaments (see fig. 3.) numer- 
ous, hair-like, shorter than the corolla. Anthers small, oval. Ger- 
mcn (see fig. 4.) superior, nearly globuiar. Style (see fig. 4.) 
undivided, various in length and direction. Stigma capitate. Cap- 
sule (see figs. 5 & 6.) angular, invested with the closed permanent 
calyx (see fig. 5.), of 3 valves, with a narrow dissepiment, or semi- 
niferous nerve in the middle of each (see fig. 6). Seeds (see fig. 7.) 
several, small, angular, smooth. Albumen mealy. Embryo un- 
cinately-inflexed. 
The calyx of 3 equal sepals, or of 5, of which the 2 outer ones 
are smaller ; the corolla of 5 petals ; the capitate stigma ; and 
the capsule of 3 valves ; will distinguish this from other genera in 
the same class and order. 
Five species British. 
HELI A'NTHEMUM VULGA'RE. Common Sun-Rose. Com- 
mon Rot k-Rose. Dwarf Cistus. Little Sun-flower. 
Spec. Char. Stem somewhat shrubby, procumbent, stipuled. 
Leaves opposite, egg-shaped or oblong, nearly flat, green above. 
Racemes terminal, bracteated. Sepals 5, pilose, the inner furrowed 
and scariose at the margin, the 2 outer spear-shaped, fringed. Style 
bent at the base, somewhat club-shaped at the apex. Seeds blackish. 
Heliakthemim vclgare, Park. Theatr. Bot. pp. 655 and 656. — Ray’s Syn. p. 
341. — Wills. Syn. p. 224. — Ga;rt. Fruct. v. i. p. 371. t. 76. — Gray’s Nat. Arr. v. ii. 
p. 662 — Lindl. Syn. p. 37. — Hook. Brit. FI. p. 258. — Loud. Art), ct Frut. Brit. p. 
343. — Don’s Gen. Syst. of Gard. and Bot. v. L p. 311. — Macr. Man. Brit. Bot. 
p. 24. — Grev. FI. Edin. p. 121. — Bab. FI. Bath. p. 6. — Dick. FI. Abred. p. 41. — 
lvv. Lond. FI. p. 182. — Luxf. Reig. FI. p. 46. — Mack. FI. Hibern. p. 34. — 
Helianthemum anglicum luteum vel album, Johnson’s Gerarde, p. 1282. — 
Cistus Helianthemum, E. B. t. 1321. — Curt. FI. Lond. t. . — FI. Dan. t. 101. — 
Linn. Sp. PI. p. 744. — Iluds. FI. Angl. (2nd ed.) p. 233. — Willd. Sp. PI. v. ii. pt. ii. 
p. 1209. — Sm. FI. Brit. v. ii. p. 575. ; Engl. FI. v. iii. p. 26. — With. (7th ed. ) v. iii. 
Fig. 1. Corolla. — Fig. 2. A Petal. — Fig. 3. Calyx and Stamens. — Fig. 4. Germen, 
Style, and Stigma. — Fig. 5. Capsule. — Fig. 6. Same opened. — Fig. 7. A Seed, 
magnified. 
* From helios, Gr. the sun ; and anthos, Gr. a flower ; because the flowers 
open with the rising of the sun in the morning, and the petals fall off with the set- 
ting of the sun in the evening. Don. t See folio 51, note f. 
