ONCIDIUM. 



ORCHIDES. 743 



Lindl. Sert. sub 48; Pale ycUow flowers spoiled wiili brown, and is easily known 

 Ly llie base of ihe labellum being very convex, a litllc hollowed out in front, and ex- 

 cavaled with a decp pii ou ihe under side. 



Lindl. Bot. Rcg. XXV. 1839. Misc. 150 : Peruvinn planl; flowered wilh Loddiges. 

 Yellow flowers , spotted wlth brown, and is ensily iinown by the base of the labeilum 

 being very convex , a little hollowed out in front, and excavnted vvith a deep pit on 

 the under side. The petnls and lower sepals are much more acute, tlian in my wild 

 speciraens Irom Chachopoyas, aml it is probablc, ihat the spccif. charact. wiU require 

 modiflcations. 



85 b. ONCIUIUM AUROSUM Rchb. fll. v. VVarscew. Bonpl. II. 108: 



Aft". 0. sarcodi labelli pandurati angulis medianis lateralibus inlrorsis 



aculis, callo quadrato-riiombeo. 



Panlcula robusto, pedalis et ullra. Rami ascendcntcs , flexuosi , polyanihi, bracteae 

 trinngulae acutae, ovaria pedicellata florida decima-quinta parte aequantes. Sepala ob- 

 ovaia cuneaia, apice plus minus rotundata seu (summum praeserlim) retusa , nunc 

 imposito npiculo ; tepala a basi late cuneata flabellata apice retusiusculo obiusangula 

 riunc ajiicuintn, paulo lorigiora , apice duplo iatiora , labellum a basi cordaia mediura 

 versus laterc subcrenulaio angustaium , subilo expansum sub angulis insilientibus in 

 lominam lran.sversam basi labelli plus duplo laliorcm , antice nunc lobulatam , medio 

 slnuutam; tabula carnosa utroque latere rhombea vertice pleiotuberculaia laevi in 

 basi; gynoslemiuia bumile . alae subquadratae seu dolabriformes retusae iutegrae 

 apiciiares, tabula infrnstigmatica ulrinque liuea arcuata limbata. Eine schoue gold- 

 bluihige Art; die liuilblaiter sind aui der untern Ilalfte roihbraun geUeckt. Es liegeti 

 uns grossere und kleinere Bliitben vor : die giossten iiiOgen denen des Oncidhiin sar- 

 codes Liiidl. {iiitjbyanum 1'uxt.) gleichkommen. Diesem stehl unser 0. aurosum wohl 

 am uachsten , allein dasaeibe ist durch rundliche Trugknollen , Lippengestalt (dort 

 sind die einspringenden Buchien.der Lippe gerundet und kurz), feinbehaarlen zwei- 

 lappigen Buckel u. s. w. gui verschieden. Peru. v. Warscewicz, 



86. O.NCIDIUM POLYADE.MUM L. F. p. 27 : 



0. panicula conlracla pyramidali, petalis sepalisque retusis, labello 

 basi circulari undulalo denlicuialo lobo medio subrolundo bilobo laliore, 

 crisla convexa seriatim verruculosa antice excavata lamellis 4 anlicis 

 denticulatis decurrenlibus, verrucis pluribus segregatis, columnae alis 

 obliquis obtusis subemarginatis. 



Li\ing |danis weie soid for Mr. Veitch at one of Mr. Stevens's sales in 1847, and 

 the species is probably in cullivalion. In a dned state it resembles 0. excavatum, 

 bui the flbwers arc larger, apparently whole-coloured , in a close pyramidal panicle. 

 The large circular base of ihe lip , nuinerous outlying lateral leeth, and flve rows of 

 litUe tuhercles oii llie convexily of ihe cresl abundantly distinguish it. 

 VVild in Pcru-W. Lobb. 



87. ONCIDIUM CAHDIOCIIILUM L. F. I. c. p. 27 : 



O^. panicuia ramosissima intricata divaricata, sepalis pelalisque acu- 

 minalls, labelii pandurati lobis laleralibus cordatis convexis rolundatis, 

 intennedio parum latiore reniformi-cordato aculo, crista cariuata utrin- 

 que tridaclyla, col. alis obsoletis buccis convexis elongatis. 



A fine species, wiih a singularly eniangled branching dlvaricaling panicle. Flowers 

 as large as in 0. lupestre or Oduiiloglossum hastilabium, The Guatemala form has 

 a niuch ihinner pan.'cle, but docs iiol seem to bo diflerent oihcrwise. 

 Wild in iNew-Grcnada— Purdie ; Guaiemala— Skinncr. 



&8. O.NCIDIUM IRICOLOU Rchb. 01. in Bonpl. L 1854. LindL Fol. 1. c. p. 27: 



Scen in cultivaiioii in the garden of Mr. Fregc. Said lo difl^er from all others in 

 hoving four-iooihed velvcty crest and a whiiish-lilac colour. The crcst is furiher 



