ONCIDIUM, 



ORCIIIDES. 801 



Sert. sul) 48. (1841.) Mr. ^kinncr: inliabits countries tlic tempcrature of which is 

 not iess than 55° or 70°. In Dec. 1839 iherniomeler at Gualeniala al 6 in tiie raorning 

 in ihe open air for 3 days averaged 36° Fahr. and yet this species continucd to shool 

 its young stems. 



Oncidium digitatum Linili. Benlh. Hariw. 94: 



Pseudobulbis ovalibus nitidis compressis diphyllis, foliis lineari-ob- 

 longis patulis obtusis, scapo slricto racemoso paniculato, ramis lateFa- 

 libus pauciiloris, sepalis liberis pelalisque oblongis planis, labello ob- 

 ovalo bilobo basi auriculato, crista pentadaclyla digitis tiliformibus ascen- 

 dentibus intermedio inlegro lateralibus bipartitis, columnae alis acinaci- 

 formibus denticnlalis. Guatemala. 



Near 0. leucochilum lilie which ii has a white lip ; numerous fingcrlike processes 

 of that orgaa readily distinguish it. 



168. ONCIDIUM OBLONGATUM Lindl. in Bot. Reg. 1844. misc. IL Paxlon I. c. ic. 137. 

 Lindl. Fol. p. 48: 



0. xanlhochlorum Klolzsch, fide Rchb. in lilt. 

 Flowers large, clear sulphur-yellow, wiih a few pale reddish-brown spots. Petals 

 rather wider than sepals, and much more bkint. Lip wiih the middle lobe deeply 

 flssured, inclining to four-Iobed, ihe outlioe being bluntly angular. 1 have a skeich 

 of ihis with ihree siigmatic giands; one in ihe usual place, and the iwo others at 

 the base of tiie two column-wings. 

 Wiid in Mexico— Loddigcs. 

 Lindl. Bot. Reg. XXX: 



Facie et structura 0. reflexi, sed petalis oblongis oblusis apiculatis 

 palulis, planis, labello alte bilobo, columnae alis rotundatis crenulalis di- 

 midiatis. 



It is alniost impossible lo find words, that will well distinguish Uie 

 Oncidia allied to reflexum, and yet they appear to merit distinction. 

 This which is from Mrss. Loddiges, has very much the appearance of 0. 

 Wentworthianum, with the; sanie clouded pseudobulbs and, speckled 

 flower-stem ; but its pelals are perfectly flat, not at all reflexed or 

 wavy, obtuse wifh a iittle point and clear yellow, with a few reddish 

 brown bars near the base. 



It is a very handsome specics on account of its flowers having as much yellow 

 in them, and heing as large , as the best variety of 0. sphacelatum. 



Huc forsan : Oncid. xanthochlorum Klolzsch Semin H. Cerol. 1852. p. 13; 

 Pseudobulbis parvis, breviovalibus nitidis, coinpressis, ancipitibus, 

 diphyllis, foliis membranaceis, rigidis, erectis, oblongis, brevissime cus- 

 pidalis , inferne altenuatis, conduplicatis, dorso carinalis , scapo sub- 

 simplici arcualim recurvo brevioribus; bracleis aridis lanceolalosubulatis; 

 peri^nthii foliolis exlerioribus interioribusque oblongis, basi apiceque 

 angustatis, acutissimis, di.sjuactis', subaequalibus, palenti recurvis sub- 

 undulatis, labello brevioribus pallide viridibus, dilute fusco maculatis; 

 labello citrino immaculato, iobo medio Jato reniformi emarginato, laci- 

 niis lateralibus patentierectis oblusis, crista glabra convexa multituber- 

 culata , antice tridentata , dcnlc medio breviore; columnae-'alis magnis 

 palenlibus, Iruncato denticulalis. 



169. ONCIDIUM DELUMBE Lindl. Fol. p. 48: 



0. lcniie grundiftorum Lindl. in Ilort. Soc. Journal, VII. 271. jc. xyl: 

 Whole habii ihat of 0. tcnuc. wilh ihe same ihin pseudobulbs and loose straggling 

 panide. Dut thc flowcrs are larger , tbc back sepal is so much rene,\ed as lo be 



101 



