ZVGOPETALUM. 



ORCHIDES. 659 



pelalisque siibrotundo-ovatis aculis, palulis, subaequalibus, labelio ob- 

 longo trilobo, laciniis lateralibus erectis linearibus obliquis obtusis, inter- 

 media ovato oblonga basi cuculLUa , transversa, crisla tlexuosa carnosa 

 inlus dente carnoso ovato aucta. 



Perigonium viride purpiireo slriolaium. Lobus labeili medius purpuieus. Pro- 

 menaea slapelioides Lindl. B. Rcg. l. c. 



17. ZYGOPET.ALUM LENTIGLXOSUiM Rchb. fll. lluc : Maxillaria lentiginosa Undl. Uol. 

 Beg. 1839. iMisc. 93. Promenaeu lenliginosa Lindl. Bot. Reg. XXL^. 1843. p. 13 : 



Bracteis lafe ovatis acuminatis, labelli lobo medio ovalo-oblongo ob- 

 tuso, crisla transversa medio processu quadrato tridentalo aucta, antherae 

 apice incurvo ; alioquin M. stapelioidi similis. 

 Brazil. 



Very like P. stapelioides ; but tbe sepals are more acute. tbe purpie spols redder, 

 more distinct, and less run into bars ; tlie iip «s of the same colour , as ihe petals 

 and its tronsverse crest has a square ihreetoothcd process in ihe middie. 



18. ZYGOPETALUM XANTHINUM Rchb. fll. Mss. Hnc : Maxillaria .vanthina Lindl. Hot. 

 Reg. 1839. sub t. 17. Promenaea xanthina Lindl. Bot. Reg. XXIX. 1843. p. 13 : 



Pseudobulbis ovalibus tetragonis 1 — 2phyllis, foliis anguste lanceola- 

 tis, pedunculis ascendenlibus unifloris pedicello sterili lerminatis, bractea 

 ovata niucronata cucullala, sepalis petalisque oblongis acutis patulis 

 subaequalibus, labello oblongo trilobo, laciniis lateialibus erectis lineari- 

 bus obtusissimis integris, inlermedia bilabiata, labio superiore carnoso 

 abbreviato Iruncalo quinquedentato, interiore oblongo acuto. 

 Brazil. 



Flowers yeliow. Bot. Reg. XXV. 1839. 17. A plant called by Descourlilz ,,Epidend. 

 Jonquilie" because of ils colour', not ils snicll, for il is scenUess, is an other. Tliis 

 was also found in ihe Organ Mountains by Mr. Gardner from whom I have a spe- 

 cimen (No. 65t)). Mr. Desrouriilz found it on iho higli mounlains of Ilha Grande on 

 the side lowards the sea, and exposed to the ri^ing suri. 



Rchb. fil. in v. Schl. Bot. Zlg. 1852. 662: Maxillaria (jiUlata Hort. 



19. ZYGOPETALUM GUTTATUM Rchb. fll. Mss. Huc : Promenaca guttata Rchb. fli. in 

 Bonplandia IV. 323. 



20. ZYGOPETALUM ROLLISSO.MI Rchb. fil. Mss. Hnc: Man-illana noUissonii Lindl. 

 Bot. Reg. sub foi. 1986. et 1833. t. 46. Promenuea liollissonii Lindl. Bot. Reg. 

 XXIV. 1843. p. 13: 



Pseudobulbis subrolundis compressis subbifoliis, foliis oblongo lanceo- 

 latis acutis apice recurvis, scapis subunifloris dillusis laxe vaginatis, sepalis 

 carinatis laleralibus basi subaequalibus, pelalis acutissimis, Jabeili lobis 

 latcralibus ovatis angustis acutis, intermedio oblongo membrauaceo api- 

 culato margiiie dellexo ; callo disci ekvalo cai noso antice transverso 

 lobos lalerales labelli conjungcnte, medio produclo truncato tridentalo 

 et denticulis reflexis postice fornicalo truncato bilobo. 



Brazil. 



Fiowers pale yellow, wiih purple spols on thc iip. — Lindi. I. c. 1838: 

 Pianta onmino facie M. stapelioidis colore niiiuis pallido cacsio. Folia nunc ob- 

 longa aiiice acuta rccurva . nunc inagis lanccolnia ; seniper scssilia. Bracteae cucui- 

 laiae, acummatae, ovariis iongiores. Sepala et petala paliide llava, immaculaia. con- 

 formia et snbaequaiia. Labellum Uavescens, sanguinco guttulatum ; iobis iateralibus 

 columnam utrinque auies ad instar adstanlibus, margine posteriore crenulalo. Crista 

 labelli clavata. iraiisversa, anlice cornubus duobus clavatis armala, altero minimo inier- 

 jecto, postice biloba, foriiicata, ulrinque denlata , denliculib quibuydarn ooluninam re- 



