Pleurospermum.~\ LXX. UMBELLTFER^:. (C. B. Clarke.) 705 



oblong white-margined obtuse lobed or very shortly pinnatifid at the apex, fruit 

 in. ellipsoid somewhat longer than broad, epicarp of very lax tissue, seed grooved 

 on the inner face. Selinum stellatum, Don Prodr. 185 ; DC. Prodr. iv. 165. 

 Hyrnenolsena stellata, Lindl. in Royle III. 233. 



North-west HIMALAYA ; Royle. KTJMAON ; Milam Glacier, alt. 13,000 ft., Strachey 

 $ Winterbottom. 



Stem, 1-6 in. Leaves 2-4 in., oblong ; pinnse ovate, acutely serrate, or subflabel- 

 lately pinnatifid or nearly 2-pinnate with mucronate lobes. Bracts 1-4, -l in., 

 pinnatifid; rays 3-5, 1-6 in., glabrous; pedicels very short. Fruit dorsally 

 compressed ; style-bases globose, depressed ; calyx-teeth obsolete ; petals often per- 

 sistent. Carpels plane on the inner face ; lateral ridges hardly so wide as the 

 intermediate and dorsal, all obtuse, hollow ; epicarp rugose, but hardly plicate ; fur- 

 rows 1-vittate. 



VAR. Lindleyana ; bracteoles entire or slightly lobed, leaves often 2-pinnate ulti- 

 mate segments oblong or obovate obtuse. Hymenolsena Liiidleyana, Klotzsch in 

 Reis. Pr. Waldem. Bot. 150, t. 49. H. nana, Osten-Sacken $ Ruprect Sert. Tianshan. 

 49. Hymenolsena, sp. No. 9, Herb. Ind. Or. H.f. $ T. ? Aulacospermum simplex, 

 Ost. $ Rup. I.e. West Himalaya, alt. 13,000-16,000 ft.; Kashmir, Thomson. 

 LAHUL ; Rev. H. Jaeschke. Distrib. Karakorum (Northern slope) : Tianschan Mts. 

 Except as to the obtuse (not mucronate) ultimate segments of the leaflets, there 

 seems no difference between this and P. stellatum type. Of Aulacospermum sim- 

 plex, the authentic example has the fruit not half-ripe, the bracteoles are rather 

 smaller. 



11. P. apiolens, C. B. Clarke; leaves pinnate pinnae j-lj in. ovate 

 often pinnatifid with 3-5-7 lobes, bracteoles 6-10 obovate caudate often toothed 

 near the apex, calyx-teeth obsolete, fruit - in. ellipsoid subquadrate. Hyme- 

 nolseuasp. 10, Herb. Ind. Or., H.f. $ T. 



Interior valleys of SIKKIM, alt. 11,000-14,000 ft. ; J. D. H. ; Elwes ; C. B. Clarke. 



Stem 3-18 in. Leaves 4-8 in., oblong, mucronate-serrate. Bracts 4-5, f-H * n - 

 obovate-lanceolate, toothed, sometimes slightly pinnatifid, rarely subentire ; rays 

 8-16, 1-2 in. ; pedicels many, scarcely in. in fruit, much shorter than the brac- 

 teoles. Carpels dorsally compressed ; epicarp loose but not of open tissue ; ridges 

 narrowly winged, subequal; furrows 1-vittate. Seed twice as broad as thick, inner 

 face exactly plane. Smells of celery ( J. D. H.). 



12. P. Hookeri, C. B. Clarke; leaves 2-3-pinnate ultimate pinnae 

 |- in. ovate or oblong toothed or pinnatifid, bracteoles 6-10 obovate-lanceolate 

 subentire white-margined, calyx-teeth ovate. Hvmenolsena sp. 8, Herb. Ind. 

 Or.,H.f.$T. Oreocomesp. 1, Herb. Ind. Or. H.f. $. T. 



SIKKIM, alt. 10,000-16,000 ft. ; J. D. H. 



Stem 8-20 in. Leaves 6-12 in., ovate, mucronate-serrate. Bracts 4-7, 1-1 in. 

 lanceolate, often toothed or pinnatifid at the apex ; rays 4-8, 1-3 in. ; pedicels very 

 many, -| in., shorter than the bracteoles. Petals persistent. Fruit not ripe, but 

 will be nearly as in the var. Thomsoni. 



VAR. Thomsoni ; bracteoles narrowly lanceolate (not at all obovate) narrow and 

 narrowly white-margined often not prominent. WEST TIBET, alt. 14,000-16,000 ft., 

 Thomson; Shelshed River, alt. 15,500 ft., Strachey $ Winterbottom. Fruit i in., 

 ellipsoid ; epicarp loose but not of open tissue ; ridges thin, narrowly winged, lateral 

 a little broadest. Seed plane on the inner face or nearly so. United with P. Hookeri 

 by H. f. & T. in Herb, and it agrees with it as to the ovate calyx-teeth, but differs in 

 the much smaller bracteoles and the remote locality. It has been placed next Selinum 

 tenuifolium by H. f. & T. (mss.) and its bracts and bracteoles are hardly more promi- 

 nent than in that species : but P. Hookeri type must be placed in Pleurosjyermum, 

 which here touches Selinum. 

 VOL. n. 



