158 DB. HOOKEB AND DR. THOMSON'S PBiECUBSOBES 



It is an extremely variable plant, being generally glabrous, but sometimes 

 hispidly hairy, and, from being often browsed by cattle, the specimens 

 assume very abnormal forms, the leaves being sometimes entire, and the 

 branches very short. Griffith's A Afghanistan specimens are in a very bad 

 state ; they are much larger, with almost entire leaves. 



6. S. Wallichii, H.f. 8r T. (Arabis? leptocarpa, Wall. Cat. 4784!). 

 Tota basi hispido-pilosum, ramis gracilibus, foliis brevibus, radicalibus 

 runcinato-lobatis v. pinnatisectis lobo terminali majore, caulinis pinna- 

 tifidis, floribus parvis, pedicellis gracillimis i" long., sepalis patenti- 

 bus, siliquis patulis v. decurvis gracillimis 3" long., stylo brevi, valvis 

 convexis, nervo medio valido. 



Arabis gracilis, Herb. Royle. 



Hab. In Himalaya occidentali temperata, Kumaon, alt. 5000-/000 ped. ! 

 Blinkworth, Str. Sr Wint. ; Kashmir et Kishtwar ! et Chamba, alt. 

 5000-7000 ped.! T. T.; Affghanistan, alt. 7000 ped.! Griffith, (fl. 

 Mar.-Apr.) (v.v.) 

 The small radical leaves, very slender long pods, and filiform long pe- 

 dicels are the best marks of this species. Thomson's Kashmir specimens 

 have more deeply and regularly cut leaves than the Kumaon ones. 



7. S. bigidulum {Dene. Ann. Sc. Nat. iii. p. 272). Humile, caulibus 

 ascendentibus, parce hispido-pilosum v. glabratum, foliis radicalibus 

 segmentis subdentatis, caulinis varie sectis, racemis paucifloris, floribus 

 magnis, sepalis patulis, siliquis patulis validis elongatis crasse pedi- 

 cellatis 2-3" long., stylo crassiusculo, valvis convexis nervo medio 

 valido. 



Hab. In Beluchistan ad Nichara ! Stocks ; Affghanistan rupibus ad flum. 



Koonur ! Griffith ; montibus Khyber ! Vicary. 

 Distr. Persia! Syria! 

 S. Pannonico et Columnar valde affine, differt statura humiliore, floribus 



majoribus, caulibus brevibus ascendentibus. 



8. S. Sophia (Linn.). Erectum, glaberrimum, pubescens v. incano- 

 toraentosum, foliis omnibus bi- tripinnatisectis segmentis angustis, pe- 

 dicellis gracilibus floribus longioribus, racemis elongatis, petalis caly- 

 cem sequantibus, siliquis erecto-patentibus gracile pedicellatis curvis 

 I" long., valvis nervo medio valido ad stigma parvum productis, stylo 0. 



#. Schimperi. Parvula, canescens, racemo paucifloro. — S. Schimperi, 



Boiss. Ann. Sc. Nat. xvii. p. 76. 

 Hab. Affghanistan, alt. 9000-10000 ped. ! Griffith ; Beluchistan ! Stocks; 



in Himalaya occidentali temperata, alt. 5000-7000 ped. ! et Tibetia 



occidentali, alt. 9000-14000 ped. ! (fl. vere.) (v.v.) /3. Affghanistan, 



alt. 6000-10000 ped. ! Griffith. 

 Distr. Persia! Syria! Asia minor! Siberia! Europ. temp, et arctica ! 



Am. boreal, temp, et subarctica ! 



9. S. minutiflorum (H. f. fy T.). Annuum, stellatim puberulum, 

 caulibus tenuibus ramosissimis, foliis parvis in segmenta linearia vane 



