ODONTOr.l.OSSlJM. 



ORCIllDRS. 833 



lalo; iaaicllis iinpuis callosis inlcgerrimis nntice in roslrum obtiisum 



breve confluenlibus, columna aplcrn puberula. 



V Wild iii Mexico; on oaks ncar San Onofro, on Uic banks of the Zimapore rivcr. — 

 C. Ehrenberg. 



This is one of Uio preUicst of liic wliite-lipped Odontogiols. In bnbit it is hardly 

 distiiiguishrdilc from 0. Rossii, to which I foriiieriy referred it; l)nl it seeins to have 

 n dwarfcr habil, snnller nowers . and especially lhi;i delicatc whiie sepals handed 

 with brown, instead of grocn ones; ihe lip loo is nciiiiiinatc, nol ronndcd, each stem 

 hcars but onc flower, and ihe processes at ihe basc of the lip aro wliite, not yellow, 

 ond join into an undividcd apex instcad of a two-lobed onc. It is just inlormediate 

 helwecn 0. Rossii and 0. steliatiini. 



•27. ODO.NTOGLOSSUM APTERUM Lox. Llnvo, Nov. Dc.vcr. 2. 35. L. 0. iNr. 5. L. F. 21: 

 0. „bulbis ovalis depressis; foliis ialo-lanceolalis nervosis coudt!- 

 plicalis; scapo lereli pauciHoro; gynoslemio aplero crasso." 

 VVild in Mexico; oa trccs near Irape, flowering' in March— La Llavc. 

 Fiowers whitc, with ronndisli pnrple spots collecled ncar the base. Lip wilh a 

 fleshy iwo-lobed unguis . having in front a pair of diverging teelh, and a crenaied 

 limb. Said by La Llave lo be very like 0. Corvantesii. Seems allied to 0. maxillare. 

 vvhich has entire lip. 



IIuc: Odontocjl. Rossii Lindl. Sert. Orch. sub t. 25. H. R. 1839. t. 48. L. F. 20: 

 0. pseudobulbis ovalis caespitosis ancipitilius monophyllis, foliis ob- 

 longo-lanceolatis scapo radicali subbifloro longioribus, bracleis mem- 

 branaceis carinatis acuminatis, sepalis bneari-lanceolalis carinatis acu- 

 minatis patentibus, petalis oblongis obtusis revolutis, labello subrotundo 

 ovato emarginato undulalo lamellis unguis confluentibus rolundalis den- 

 ticulis 2 anlerioribus obtusis, columna aplera pubescente. 

 0. acuminatum Hort. 

 Wild in Mcxico— Uarker. 



A small species , wiih one or Iwo flowers only on the scnpe. Tbe scpais are 

 yellowish-green, blotched with brown ; Ihe petals are while, spolled vvith purple al 

 ihe hase. The lip is pure whiie, and slightly downy. 



IIuc: Odonlogl. Elirenlicrgii Van Iloutte FI. Serr. IX. 846. 



28. ODONTOGLOSSUM NEBULOSUM Lindl. Scrt. Orch. sub t. 25. L. F. Nr. 21: 



0. pseudobulbis 2— 3-pliyllis , fobis oblongis a€ulis basi condupli- 

 calis pedunculo terminali eredo paucifloro brevioribus, bracteis scario- 

 sis amplexicaulibus ovario duplo brevioribus, sepalis petalisque laliori- 

 i)us membranaceis oblongis undulatis basi pubescentibus apiculo re- 

 curvo, labelli ungue cucullalo carnoso lamellis duabus erectis denlibus- 

 que lolidem anticis, limbo ovato actito dentato pubescenle, columna 

 aptera elongala tomenlosa. 



Wild in Mcxito— Karwinski, Galeotli. 



This is ihe largest of ihe race wilh which il is associated ; thc scape which ap- 

 pears wilh the young leavcs is about a foot high ; and ihc flowers arc ihree inches 

 and a hulf in diamcter. The lip varies in the degree of toolhing, being eiiher coar- 

 sely looihed, or meiely denticulate. 



29. ODONTOGLOSSUM G.ALEOTTIANUM A. Rich. in Ann. Sc. 1845. Jan. L. F. 22: 



Psiiudobulliis aggrcgalis 1-phyllis, (olio elliptico lanceolato aciito, 

 scapo foliis diiplo longiorc 3-floro, labelli „ahs ereclis obtusis truncalis", 

 limbo sui)cordato-acuminato, colurnnae marginealalo alis angustis longis. 



Wild iii Mexico— Galeotti. 

 „Fiowers larpe, white." 



VL 



105 



