T20 • ORCHIDES. oncidium. 



seems to Le ilisiincl from any of the forms of 0. CeboUeia. Mr. Ganlner distin- 

 guished it under the name 0. uropliyllum, now olherwise oppiied. 



Wild in nrazil; common on trees at ilio junction of R. Negro and Solimaes — 

 Spruce , 15^6; on trees to S. of Ociras— Gardncr, 2732; common on the branches 

 of a species of GeofTraea belween Ico and Crato— vernac. Rabo de Salu or Armadil- 

 lo's lail. 



42. ONCIDIUM CKCOLLETA Swarlz Act. Holm. 1800. 240. L. 0. 206 L. F. p. 14: 



(A.) Flowers smaller; lateral lobes of lip small , obliquely ovale. Leaves very 

 long:, erect. 



0. jitncifolium Lindl. Coll. Dot. p. 27. 

 0. Cepu!a IJolTiiigg. 

 (B.) Flowers wiih the lateral lobes of lip obliquely ovate-obiong. Leaves very 

 shorl, erect. * 



0. brachyphyllum Lindl. D. R. sub t. 4. 

 (C.) Flowcrs large. in a dense panicle. Lateral lobes of lip dolabriform. Sepals 

 and pelals very b'unt. Leavcs long. spreading on the ground. 



0. longifotinm Lindl. in Uot. Reg. 1841. .Misc. 56. 1812. t. 4."» 

 Wild in the VVest-!ndi;S , etc. ; A. Cariliagena in woods— Jacquin; Drazil , near 

 Sanlarem in I'ara— Spruce ; Sa. Martha — Purdie ; Mexico , in Ihe prov. of Mirador— 

 Linden. 225; U. iMexico— llartwfg ; C. Mexico— Hariweg. 



Different as these |)l3nls oflen are , I feel persuaded ihat they are only forms of 



one conimon variable species. The peculiarities of ihe leaves seem to depend on the 



place of growth. C. is the mosl distinct of ihe ihree. I:» some states ihe corolla is 



spotled wiih rose-colour at ihe back, in oihers it is quite whole-colourcd. Alhough 



seldom culiivated, even the worsi of ihe foriiis makes a. ^ay addiiion to a colleciion. 



Huc: 0. longifolium Lindl. Dot. Reg. XXVI. 1811. Misc. 56 : 



Foliis lerelibus longissirnis diffusis, scapo ereclo dense paniciilato, 



sepalis pelalisqiie apiculatis , obtuse conca\is, labelii lcbis lateralibus 



oblique ovalis ii)termedio obovato bifido minoribus, tuberculo basi de- 



presso antice Iricorni f:labro, colunmae alis brevibiis rolundalis. 



Allliough ihis species has the foliage of 0. Ceboletla, it is rcally very diCferent, 

 lorniing dt-iise panicles , 3 feet long, of very large and showy yellow and brown 

 llowers. lis leaves are ofien 3' long and liang down or spread upon ihe ground in- 

 stead of sianding slifi" arid ercct. as in ihe allied species , several of which are as yel 

 bul little known. Imp. Ilort. Soc. 



Dot. Ri'g. XXVIII. 1812. 4. Folia iripedalia, nagelliformia, proslrata. Scapus 3—4- 

 pedalis paniculaius. Scpala et petala lulea sanguineo-maculala ; labellura luteum 

 sanguineo prope basin marginaium. Mexico. 

 Huc: Oncidinm brachijphyllum Lindl. I. c. : 



Foliis crassissirnis brevibus ereclis aculis, panicula la.\a panciflora, 

 sepalis petalisque obovalis acuminalis longe unguiculatis , labelli lobis 

 laleralibus paienlibus ovalibus aculis, intermedio renilormi emarginalo 

 longioribus, luberculo Iricorni subverrucoso, columnae alis sublunatis 

 brevibus rolundalis. 



Mexico. Very shorl stiff leavcs, and small panicles, not above 18" high. 



43. ONCIDIUM ASCENDENS Lindl. in Dot. Reg. 1842, sub l. 4. L. F. p. 15: 



Flowers scarcely larger, than in 0. nudum , yellow wiih red in ihe region of tho 



crest. and in ilie form of stains oo ihe sepals and petals, The linear jncurved co- 



himn-wings arc ;characleristic. 



Wild in Sa. Lucia — herb. Danks ; Guatemala — Ilartweg; Mexico . ChiDanlla near 



Oaxaca, ai 2000 feet.— Galeotii, 5351. 



