786 ORCHIDES. 



ONCIDIUM. 



TLis is near 0. Wentworthianum in the coiour ond struciure of ihe flowers. Oc- 

 casionally the principal part of the abortive as in 0. heteranthum. The panicle is oc- 

 casionally 3 feet long or evea raore. 



137. ONCIDIUM CULTRATUM Lindl. in Ann. Nat. Hist.. XV. 384. Lindl. Fol. 42: 



A small species, about six fnches high, with a stilT curving slightly panicled 

 raceme. 



Wild in Popayan ; in woods on ihe ascent to Soiara— Hariweg. 

 Lindl. 1. c. 1845; 



Pseudobulbis ovalibus compressis, foliis lanceolatis solitariis basi 

 canaliculatis, scapo liumili acqualibus, panicula cernua simplici floribus 

 quibnsclam abortientibus, sepalis petalisque oblongis subaequalibus re- 

 flexis, labello bilobo, crista parva tuberculata, columnae alis maximis 

 cultratis obtusis integris. 

 Popayan. (Hartweg). 



As far as I can judge of 0. olivaceum which I hnve never been able to see, it 

 must be near this, which is a dwarf species with not more than 10 (lowers in ibe 

 ppnicle. The flowers appear to be olive brown with a yellow lip. 



138. ONCIDIUM RETUSUM Lindl. in Bot. Reg. sub t. 1920. Paxt. Fl. G., II. ic. 136. 

 Lindl. Fol. 42: 



Pcrhaps the rarest of its race. Flowers marked with intensely brown bands 

 nearly up lo ihe edge. 



Wild in Peru; M. Pariahuanca— Maihews, 1066. 



Lindl. I. c. 1837. 



Pseudobulbis — , foliis lineari-Ianceolatis, scapo paniculato divaricato, 

 sepalis pelalisque subaeqnalibus spalhnlatis retusis subcarnosis, labelli 

 lobo medio reniformi bilobo lateralibus paulo majore, cristae Jamellis 

 5 brevibus tuberculos 6 elongatos circumdantibus, columnae alis maxi- 

 mis acinaciformibus dentalis. 



A beautiful species with deep chesnut and yellow flowers, and a yellow lip. Its 

 moile of growih is ihat of 0. Daueri. 



B. Homoeantha: * obsoleta. L. F.p. 42. 



139. ONCIDIUM DRACTE.ATUM Rchb. fll. in Bot. Zeit. 1852. p. 695. Lindl. FoL 42: 



A few flowers from Prof. Rcbb. do not enable me to examine this satisfactorily. 

 Its scabrous peduricles aiid great spalhnceous brncts are remarkable. „The end of 

 the infloresccnce is lerminatcd hy convolule brncts." — Holib. in litt. 

 Wiid in VerDgua ; Chiiiqui, on trees, at 6—9000 ft. — Wagener. 

 Rchb. fil. I. c: 0. bracteatvm Wswz. Rchb. fll.: 



Pediinculo muriculis obtusatis stomalopboris asperulo, ramulis in 

 axillis spathaium glumacearum acutarum, bracteis subaequalibus ovaria 

 pedicellata subaequanlibus , perigonii pliyllis oblongis acutis prope 

 aequalibus, lateralibus inlernis quidem latioribus, labello trilobo, lobis 

 lateralibiis auriculaeformibus , obtusatis, lobo medio ab illorum basi 

 sensim anguslato. suliito in laminam reniformem bilobam dilatato, callo 

 baseos anguslo dorso carinato, antice tricrenalo, lateribus paucidentato, 

 alis gynoslemii anguslis, rainute denticulatis, lamellis corneis quadratis 

 parvulis snppositis inferne rectangule flexis confluentibus. 



Die obersten 2— 3Scheiden tragen keine Zwriglein und bildcn einen geschlossenen 

 Schopf, etwa wie die untersten stcrilen Bracteen gewisser Coelogynen, Bluthe sehr 

 gross. wie dio dcs Oncid. Wentworthlanum. Der Anhangsapparat unler der Norbe 



