Ootyledon.] iiii. ceassulacejb. (0. B. Clarke.) 417 



SlKKiM HiMAiATA, alt. 10,000-12,000 ft., J. D. H. 



Stems 3-6 in. high, throwing decumbent stolons from the base. Cauline leaves 

 i in. long, sessile. Petals united at base only. Stamens 6. Flowers sometimes 

 4-merous. Seeds ellipsoid, smooth, tailed. 



6. SEDVm, Linn. 



Succulent herbs. Leaves alternate or rosulate, rarely opposite ; entire or 

 lacimate. Flowers cymose, hermaphrodite, or unisexual by abortion. Cali/x 

 5-4-partite. Petals &-4, free. Stamens 10-8, the alternate ones adnate to the 

 petals. Hypogynous scales quadrate or cuneate, entire or emarginate. Carpels 

 5-4,' free or slightly united at base, narrowed into the styles ; ovules very numer- 

 ous. Follicles 5-4, many-seeded. — Disteib. Species 130 ; mostly in the cold 

 and temperate regions of the northern hemisphere; one species is found in 

 Abyssinia and one in Peru. 



Sect. I. Rhodlola. Rootstock perennial, thick, suberect, with a crown 

 of scales from the axils of which rise the simple leafy annual stems carrying 

 terminal cymes. Flowers dioecious or polygamous, often 4-merous. Petals in 

 the males often much exceeding the sepals ; in the females shorter or narrower. 

 Styles usually . short, recurved in fruit. Seeds oblong-ellipsoid, compressed, 

 teata loose produced beyond the end of the nucleus, often as a bent short taU. 



.-, * (h/mes dense, not carrying bracts on the short branches (though there are 

 frequently bracts at the base of the outer branches'). 



1. S. Xtbodlola, BC. Prodi: iii. 401 ; leaves obovate or broadly oblong 

 often toothed towards the apex, petals yellow, hypogynous scales in the 

 males oblong emarginate. Ledeb. Fl. Moss. ii. 179 ; H.f.^T. in Jown. Limn. 

 Soc. ii. 95. S. imbricatum, H. f. 8r T. in Jown. Linn. Soc. ii. 101, Rhodiola 

 imbricata, Fdgw. in Trans. Linn. Soc. xx. 47. R. rosea, larni, ; Fngl. Pot. t. 

 608. 



AiPiNii Western Himalaya; from Kttmaon to Kashmir, alt. 12,000-17,000 ft.; 

 frequent. — Disteib. The arctic and alpine regions of America, Europe and Asia.. 



Very glaucous. BootstocJc having an odour of roses. Stems 3-15 in., thick. 

 Leaves J-1^ in. long, imbricated (often very closely) from a narrow or broad base. 

 Cyme densely congested. Sepals narrow oblong. Stamens long, exsert. Carpels in 

 fruit 1 in. long, not narrowed gradually at the base. — The examples of S. imhricatwrn 

 have dioecious (or functionally dioecious) heads ; and the carpels have short recurved 

 styles, altogether as in Sect. Bhodiola, 



2. S. heterodontum, -HI /. ^ T. in Journ. Linn. Soc. ii. 95; leaves 

 ovate incise-dentate from a broad or cordate or auriculate base prominently white- 

 margined, flowers rose-coloured ? (ex H. f. & T.). S. serratum, jacguem. 

 Journ. 



Temperate and Alpine Western Himalaya, alt. 8000-14,000 ft.; Kashmir, 

 Jacqziemont ; Kunawur, T. Thomson ; Mandala, Cleghorn. 



Stems 12-18 in. Leaves loosely imbricate. Cyme very dense, especially in fruit. 

 Otherwise agrees closely with S. Bhodiola, of which H. f. & T. suggest it may be- a 

 variety. 



3. S. creuulatum, H.f. ^ T. in Jowrn. Linn. Soc. ii. 96 ; leaves ellip- 

 tic or broad oblong sessile crenulated, cymes sessile enclosed by the uppei leaves 

 and outer leaf-like bracts, sepals purple narrow-oblong, petals rose-coloured. 



VOL, II. be" 



