Falklands, etc.] FLORA ANTARCTICA. 235 



natural, the styles and foliation forming very evident and nearly constant characters j though D. cryptantlta, in having 

 the flowers entirely sessile amongst the leaves, stands alone in the genus : unfortunately the specimens of this are not 



5. D. siliquosa, n. sp. ; caule brevissimo basi ramoso, foliis versus apices ramorum rosulatis lineari-obovatis 

 villoso-sericeis, pedunculo incano sursum pedicellis sepalisque dorso hirsutis, floribus in corymbum subcapitatuni 

 nudum dispositis parvis albidis, petalis elongato-spathulatis unguiculatis retusis, siliquis linearibus obtusis glaber- 

 rimis, stylo nullo. 



Var. /3, Antisana; foliis majoribus laxius confertis obtusis. 



Hab. Colombia; Cotopaxi, 13,000 feet ; Professor Jameson. Var. jS, on walls at the Hacienda of Antisana, 

 Professor Jameson (n. 28.). 



Radix descendens, multiceps. Folia \ (in var. /3 f ) una longa. Pedunculi 1| unciales, simplices, nudi. Siliquee 

 i lin. longs, lineares ; valvis planis, saspe purpureis ; seminibus oblongis, rufo-fuscis. 



6. D. Macleani, n. sp. ; incano-tomentosa, caule brevissimo diviso, foliis confertis obovato-oblongis obtusis, 

 corynibo subcapitato nudo, floribus parvis breviter pedicellatis albidis, siliculis glaberrhnis ovatis in stylum brevis- 

 simum attenuatis, valvis planis. 



Hab. Andes of Peru ; /. Maclean, Esq. 



A priori differt foliis incano-tomentosis, fonnaque valde diversa siliculamm attenuatarum. 



7. D. ajjinis. n. sp. ; caule brevissimo diviso, foliis confertis patentibus obovato-lanceolatis subacutis sericeo- 

 hirsutis, pedunculo puberulo, floribus corymbosis subcapitatis parvis, siliculis pubescentibus pedicellatis elliptico-ob- 

 longis stylo brevissimo terminatis, valvis subconvexis. 



Hab. Colombia; Hacienda de Antisana, on old walls, at an elevation of 13,400 feet; Professor Jameson. 



D. siliquosa proxima siliculis latioribus brevioribus pubescentibusque prsecipue difl'ert. Ha?c cum tribus praa- 

 cedentibus habitu et statura omnino convenit. 



8. D. Falklandica, n. sp. ; vid. supra. 



Hab. Falkland Islands; Lieut. Robinson, R.N. 



Forma siliculae D. qffiui proxima, sed magnitudine, vahds convexis, stylo longiore, siliculisque raeemosis 

 differt. 



9. D.funiculosa, n. sp. ; vid. supra. 

 Hab. Falkland Islands ; /. D. H. 

 Species nulli arete aflinis. 



10. D. aicstralis, n. sp. ; annua, gracilis, caule simpliciusculo patenti-piloso, foliis radicalibus paucis rosulatis ob- 

 longis oblongo-lanceolatisve plei-umque integerrimis obtusis supra subsericeo-hirsutis subtus stellatim pubescentibus, 

 pedunculis glaberrimis nudis paucifloris, floribus albis pedicellatis, pedicellis fructiferis filiformibus silicida glaberrima 

 lineari-oblonga utrinque obtusiuscula \ brevioribus, valvis planis, seminibus plurimis parvis. D. australis, Brown, 

 MSS. hi Herb. Banks. 



Hab. Patagonia; Mus. Banks. BahiaBlanca; C. Darwin, Esq. 



Species D. lineari, Boiss., D. cimeifolia, Nutt., et D. micranthce, Nutt. similh'ma. 



