Plat.: XXV. 



CYRTOCHTLUM MACULATUM. 



Cyrtocliilum ninculntum. Botanical Register, 1838, wise, no. 3f). /. 44. Know/** 

 and Wtotcott, Floral Cabinet, t 57. 



Although the plan of this work is not to admit any plant of which a figure has been previously 

 published, yet tlie variable appearance of tlic present species, and tin: great beauty of some of it* 

 varieties, seem lo justify a deviation from the rule, especially as it is impossible to do justice to the 

 species on a page the size of the monthly Botanical |tcriodicuIs. 



The specimens which first flowered had hut little beauty, (he colour of their sepal* mid petals 

 being green i and the number of flowers inconsiderable : but there have lately appeared, among 

 the plants sent from Vera Crux to the Horticultural Society of London, by Mr. Ilartweg. many 

 specimens in which a rich yellowish brown is substituted for green, the sue of t lie flowers much 

 increased, and the whole inflorescence arranged in a large nodding panicle, instead of a few (lowered 

 raceme Among the varieties ODe which is in the possession of John ltogcrs. Kswj. Jim. of Scvenoaks. 

 has been selected for illustration. 



1 1 is not merely ils beauty that renders this specie* valuable ; its fragrance is of the most delicate 

 kind, resembling primroses; it is very easily cultivated, and it remains in flower a considerable lime* 

 At Plate Vll. of Ihis* work 60010 observations were made upon the difliculty of finding a good 

 distinction between Cyrtochilum and Oncidium. This*, and some other plants now in cultivation, 

 having rendered it necessary that the question should be fully considered. I have been led into an 

 extensive examination of these two genera and of Odontoglossum, also vaguely characterized, which 

 lias led me to the following conclusions. 



Cyrtochilum is not to he distinguished from Oncidium by any character derived from its 

 column, for in this respect they an- *>m -uiially the *ame. JI, Kimih assigned his specie* a column 

 winged at the margin, and not nurieled, as in Oncidium and Odontoglossum ; but the auricles are 

 not found in Oncidium corynephorum' ! , and scarcely in O. cordauim '; two new Peruvian specie* 

 nearly allied to Oncidium mac rant limn. The convexity of the lip of Cyrtochilum is not greater than 

 is found in many common Oncidia. and is much less than in O. excavatum^, in which the tuber- 

 cular b.ivr U excavated into a kind of niche, the opening of which looks towards the apex of the 

 lip. Neither will the undivided margin of the lip iiflbrd a more valid mark of distinction, for 

 independently of all other cases. I have not fewer than three unpublished species of Oncidium in 

 which the lip is perfectly entire, viz* O* eochleatum^', aureum 1 *^ and bmchynndrum*. 1 du not, 



(I ) OltttfcMTM ffminfl ; nmdotiulbu ftiwutfiMiitii* drapvis fcfiii angiuM UnttttUtb ncuiiulink «np> rammo raakuUlo. 

 bfflirtrii- mtm &tm K&i mbnXfcwli. c-Uuwiiris mjhIi* |^In)k^ >qbMuinlo-QblQa£i* loagj < uiijpiinilbU\ Ubdl<* mili oJxmtfr 



rutunlitu : e»HftlH^-<lrj»jo»iia^triiii*U**fvn*^ /Vnritt, MuUVnt |IOtS), 



{2,) Ow«mm«fA»M; remfebulbt* folib <&k»n^bdic*oUrii acuta cixucn* Ux*i *^u*titis «a^-) jnm™lflli> mnoHMiiTW, 



bratttn olilmifo* rut uUMm mcubrautrit oUtub, xpftl» my,wu.nti* m*ti* umliiLilis pplnlu un^uicuUtU tonlalii mircinc crc-« 

 oW*uLitit, UbfUl ta*uti uiitfuxuiiti lob** auguuit acamiiuiU sfipttidiabui dbri ]w^it|tU» o&iiuA iab*^^t^-W*nm-t ; 

 r»pH*iorfrip**jt*t*iuuprvpr /Vinywr. MHlhrwt (106?)* 



(3) Onci&ICM *rj*raiw/*T* ; pvmlobulbit fclijtqu* «*;*> puufulato. bnclvti ■uiumlfonmbut mctnbmca^vk *C4U\ tfitttt* 



LtiT-iliW <fcnnlu oUu»U libera tvpmiw rafirtuo ftftil-% |^ulti liicmbnwot* obltmj-i. rrtu.i* U*4 iuigii»tills Inlwlt* k-.«K 

 pamkn^a apxv rttutxUu oinir^iaio wlL*G>rai b*-i cunhto ronino fomicutim Fxawtfo, raluinn r n!i* rrtu*i* rotumktb, 



(4) Qxctvnw ttcMmt*'* ; n^tirlolMtlbu folibq br*tt^ oblonipi MrnbnuiawU ubiu*is Itoribu* deiuU, vWi* iMeriJibt** 



rtrinMintfu pctn.ftniH hixxolaut nojti* cmfonmbui at rotrotittibus UWHo nnjroicutao ronra\o oU* Mu acuta Wl bttunrlUla 



nrtVmilo p*rto infra mc^hnu Iribuhuw ifrntlculi* intrnttiis colutantr a\U angattU bifclii iaOgdi. ftnuttd S*Ynro 



(i) Okcii»IV)i a*****; pwudobulbit ^iiJiwn*l*n^>|fllU iiftimini*]*o(Atit(*,*«i]Ki |unta.LiUi rami-^iraKbrart.<ii 



mvnii nicmbraAiccat ififtihacvu, HjaH* latcraftbai h-micc*imniH poUKtquo OiRlit Aniti*. U>>rUri rx»nl*io ouwaIv rvtuiuLit^ tjTurui- 



euklo: m*n^i)o iitnt> utr^u«- ImWaIi'i tt4ut» iiainqv baaj« d% A cvloiinu* •rlimriforw^Ui* (»ccri» /« mvwtn <dt<* 



yt^*e /thifiifcTiVtfw, Mftllim (1O0S). 



{fO Qv&KWM IrnfApnJnni pwirfotallHWnfitwit* , ^»;« tntui Mih-litllor-.-. wfu& luHnriluioxkhtit utvlulalii mutrI- 







