Nanochilus, Rhynchanthus. 377 



Nota. Indoles floris hujus generis reductionem cxtremam totius familiae offert; staminodia 

 lateralia pariter ac in Burbidgea frustra quaeruntur; labellum autem in mucronulum exiguum 

 mutatum in genere uUo non porro reperitur. 



Conspectus specierum. 



A. Spica pluri-(4 — 5-)flora, bracteae et caljx pallide, aurantiacae, 



coroUa flava, lobi viridescentes, tubus longe exsertus . . . \ . R. longiflorus. 



B. Spica biflora, bracteae ut caljx rubra, corolla purpurea, tubus 



haud exsertus %. R. Bluthiarms. 



\. R. longiflorus Hook. f. in Bot. Magaz. (1886) t. 68G1; Bak. in Hook. f. Fl. 

 Brit. Ind. VI. (1899) 257. — Caulis semimetralis basi ad 3 cm incrassatus radicibus 

 filiformibus crassis affixus. Folia 8 — 12 regulariter disticha 13 — 18 cm longa et 3 — 

 3,5 cm lata oblongo-lanceolata acuminata rubro-marginata, vagina rubro-maculata. 

 Flores 4 — 5 ad 9 cm longi; bracteae lineares rubrae ad 4 cm longae; calyx paulo 

 brevior; corollae tubus 5 cm longus pallide flavido-viridis, lobi virides; filamentum 4 cm 

 longum ad medium intumescens luteum; anthera aurantiaca; ovarium puberulura stigma 

 haud ciliolatum. 



Burma: Eingeführt bei Low in den Gfärtnereien zu Clapton. 



2. R. Bluthianus Wittmack in Gartenfl. XLVIII. (1899) 38 t. 14fi4. — Caulis 

 ad 30 cm altus basi ad 1,5 cm diametro; radicibus haud crassis. Foha 4 oblongo- 

 lanceolata sessilia ad 1 2 cm longa et 4 cm lata acuminata haud marginata, vagina 

 concolor. Flores 2 ad 5 cm longi; caljx 1,5 cm longus pulchre ruber truncatus tri- 

 denticulatus unilateraliter fissus; corollae tubus caljcem aequans (sec. iconem) lobi 

 subduplo longiores rubri; stamen dimidio corollam superans pure album, anthera flava; 

 ovarium glabrum. 



Burma: Mit Orchideen eingeführt bei Bluth in Steglitz bei Berlin, blühte am 

 15. August 1 896. Auch in Wimbledon blühte sie im September 1897 bei Dr. G. Walker. 



Nota. Gl. Bluth declaravit, hanc plantam ex Indiae orientalis loco haud aecuratius 

 indicato introductum esse; at probabiliter illa incola Burmanica. 



Subfamilia IL Costoideae K. Schum. 



Costoideae K. Schum. in Engler's Bot. Jahrb. XXVII. (1899) 265. 



Calyx tubulosus tridentatus dentes aequales vel anticus brevior, interdum spinoso- 

 mucronati. Corollae tubus caljcem aequans vel paulo brevior, lobi oblongi vel eUiptici 

 subaequales aestivatione imbricati. Labellum maximum obovatum raro breve ellipticum 

 obtusum; staminodia lateralia vel dentes labello paulo breviores referentes. Filamentum 

 nunc latum petaloideum apice obtusum longe thecas in mediano affixas superans, 

 vel breve , antheram connectivi appendicula brevi rotundata munitam apice gerens. 

 Ovarium tri- vel biloculare, tunc interdum saltem rudimento tertii donatum; ovula 

 plurima horizontalia angulo interno vel dissepimento mediano affixa horizontalia ; stilus 

 filiformis, stigmate cupulato ciliolato. Capsula sicca nunc trivalvis nunc exocarpio ob- 

 litterante aperta. Semina angulata arillo brevi basali cincta. — Ilerbae terrestres vulgo 

 elatae vel giganteae polyphyllae interdum minores epiphyticae oligophyllae erectae 

 rarissime repentes paucifoliatae vel acaules. Folia in lineam cochleatam spiraliter dis- 

 posita, raro cruciatim ordinata, vaginis clausis donata. Inflorescentia saepissime stro- 

 biliformis nunc caulem foliorum terminans nunc ab eo discreta; bracteae uni- vel 

 biflorae; flores magni speciosi bracteolati vel minores calycem vix alte superantes tune 

 interdum ebracteolati, bracteolae complicatae vel tubulosae. 



Genera 4 orbem geronto- et neogaeum tropicum inhabitantia. 



Conspectus generum. 



A. Labellum maximum, filamentum petaloideum antheram longe 

 superans, staminodia lateralia 0. 



