44 



46. HEXADESMIA fasciculata. 



Adolphe Brongniart in Ann. Sc. xvii. p. 44. 



Under this name has been just described by M. A. Brong- 

 niart, a Mexican Orchidaceous plant, found in that country bv 

 Linden, and which has flowered in the Garden of Plants. 

 There is no doubt about its being the same as Mr. Bateman's 

 unpublished genus Hexopia, whose name must therefore be 

 cancelled. The following is the description of the plant in 

 the Annales des Sciences. 



HEXADESMIA. Sepala subconniventia, supremo oblongo-lanceolato, late- 

 ralibus triangiilaribus infra cum basi columnae in pseudo-calcare unitis. 

 Petala sepalis subsequalia oblonga. Labellum cum basi producta columnae 

 articulatum, subintegrum, plicatuni. Columna petalis bre^ior, semiteres, 

 "apice clavata, clinandrio auriculis lateralibus et dente postica uncinata 

 marginato, basi foveola nectarifera excavata. Antliera opercidse formis, 

 denti marginis clinandi'ii affixa, carnosa, sexlocularis. Pollinia G sequalia, 

 4-posticis caudiculis longioribus replicatia, 2 anterioribus caudiculis bre- 

 vissimis, tria ad utrumque lobum antlierse pertinentia et interse cau- 

 diculis unita, facillime glutine apicis caudicidorum in fascicule unico 

 connexis. 



Herba mexicana ab indefesso viatori Linden Musseo Parisiensi allata, liabitu 

 Dendrobia qusedam asiatica et forma floris Apora praesertim referens, 

 sed polliniorum structura cum Epidendreis quadrans eorumque numero 

 ab aliis hujusce familise generibus, excepto liexameria K. Br. 6 tribu 

 Malaxidearum, distincta. 



a. fasciculata. Caules e rhizomate nascentes, erecti, basi graciles squaniis 

 vestiti, superius incrassato-subspathulati bulbosi ; pseudobulbis stipitatis 

 compressis elliptico-lanceolatis apice, diphyllis. Foliis oblongis 5-6 pol- 

 licaribus, pollice lata, coriacea, plana, apice emarginata. Floi'es ter- 

 minales 2-4 fasciculati subsessUes, e spatha communi brevi exeuntes, 

 pediceUis ovariisque gracilibus incurvis, squamis obtectis. 



48. CATASETUM globifl6rum. 

 Hooker in Bot. Mag. t. 3942. 



C. glohijlorum ; spica elongata multiflora, periantliio globoso, sepalis petalis- 

 que subconformibus ovatis acutis concavis arctissime imbricatis, labello 

 hemispbserico-globoso, ore contraeto oblongo inferne dilatatp basi co- 

 lumnse longitudine denticulate, columnse brevis setis rectiusculis. — 

 Hooker, I. c. 



A Brazilian plant, very much like C. Hookerl, and perhaps 

 a variety of it. The sepals and petals are olive-brown, and 

 closely applied to a glaucous globular labellum, the greater 

 part of which is uncovered. It is stated in the Botanical 

 Magazine to have flowered in the Glasnevin Botanic Garden. 



