804 ■ ' ORCHIDES. 



O.XCIDIUM . 



176. ONCIDIUM DICIIROMATICUM Rclih. fil. in Bonpl., Ap, 1. 1855. L. F. p. 50: 



Tlie leavos of this arc undesciibed, and I am noi certain how ii is lo be disling- 

 uished vvell froiu 0. ensaium. The flowers are smalier, and Ihe .sepals and petals 

 shorier, the latter heing soraewliat ihe widest, In liie crest it would seem ihat more 

 distinctions occur ; for according to a sketch by Mr. llchh., ihai of 0. dichromaiicum 

 is two-lobed at tiic base , wiih only a pair of long legs in front. and a shori tooih 

 between, while in 0. ensatura it is distinctly flve-lobed, in addition to ihe two front 

 legs. Tlicse would scem to be sufficient differences, 



Wild in . CuUivated by Booth and Sons, of Ilaraburgh. 



Rchb. fil, in Bonpl. III. 215: 



Aff. 0. ligralo lepalis bene acutis, callo velutino sexdenlato, gyno- 

 slemii recli alis ulrinque acuniinatis. 



Pseudobulbi macuiato nubeculosi. Panicula — . Sepaia lanceoiaia acuta undulata. 

 Tepaia oblonga obtuse acuia magis undulata. Lahellum a basi subcordata utrinque 

 auriculalum dein late constrictum, ac subito cordatum, margine sinuaium , apice bi- 

 lobum lobo altero alteri imposito. Callus baseos velutiiius oblongus , basi laiiori 

 utrinque extrorse bilobo, apice in carinas duas exiens, Gynosieinii alae angustae 

 ulrinque falcatae. Tabula niedio utroque margine emarginato, Foveae limbus dimi- 

 dio superiori latius marginatus. Bliiihen so gross wie die des 0. Baueri , gelb und 

 braun. Lippe auf schmalem Mittelstiick braun mit wenigen gelben Fleckchen, Iluil- 

 blatter dicht braun gewolkt auf gelbem Grunde, — Cultur der Herren Booth und 

 Sohne. 



177. ONCIDIUM GUTTULATUM Rchb. fil. in litt. Lindl, Fol. p. 50: 



The foliowing is Prof, Rchb,'s description: — „Sepala lanceolata, acuia. undnlata, 

 ultra medium basin usque brunneo picta. Tepala (Peiala) latiora, undulaia. apicihus 

 inflexis. Labclli sessilis auriculae basilares obtusae in isthmum obcuneaium con- 

 strictae; apex basi aequilatus, reniformis, bilobulus. Isthmus brunneo fasciatus. 

 Callus baseos (crista) depressus, minuie pulverulus , panduratus, apice tridentatus. 

 laieribus hinc minute serrulatus , albidus, fusco-guttatus. Gynosteiuium (Coltimna) 

 curvalum, gracile; rostellum trilobum ; alae angustae quadralulae , uirinque oblu- 

 sangulae," — The appearance of the specimen before me is Ibat of Onc. lenti- 

 ginosum. 



Wild in . Obtained from the garden at Ilerrenhausen, 



178. ONCIDIUM CRUCIFERUM Rchb, fil, in Bonpl., May 1, 1854, Lindl. Fol. p. 50: 



Ncar 0. excavalum, but wiih a cruciform crcsl toothletted at the end beaked in 

 ihe disk, with retuse somewhat lobed column-wings. Panicle long , with a fcw 

 distant straighi branchcs, the lowest of which are fiveflowered. Intermediate as to 

 pelals between the macropetalous and micropetalous groups, Auricles of the lip 

 with long narrow ungues. — Rchb. fil. In ray solitary flower ihe isthmus coii- 

 necling ihe base and apex of ihe lip is very long , and tlic crest is remarkable for 

 a long downy incurvcd horn standing at right anglcs to a pair of flat emarginate 

 teeth; in additiou lo which there arc four wurts, two below ihe teeih , and two at 

 ibc base of ihe horn. 



Wild in Peru — Warczcwicz. 



Rchb. fil. Warczewicz I. c. II, 109 : 



Atr. 0. excavato callo cruciformi apice denticulalo, disco roslralo, 

 alis relusis lobulatis. 



Panicula clongala : rami rari, rcmoii. recti, scu vix flcxuosi, infirai — 5nori, brac- 

 tcae spathaceae aculiusculae ovaria peditcllala quaria parte aequanies, sepalum sum- 

 mum a basi angustissirae cuneata lanceolulum acutura , undulatura, sepala lalcralia 

 subaequalia , longius unguiculaia; lepala sessilia scu subsessilia paulo laliora. label- 

 lum basi augu»la cuncaiam. dein uliinquc oblique retrorsum ligulato retusoque auri- 

 tulaium, auntulae annce in unguem Imettrem longum angustaiae; labeUi portio 



