488 C€LXIX. OROHIDEJE. 
332, SercENIPEDIUM. Perianthium et antherse Cypripedii (nisi labellum abnorme) Ova- 
rium 3-loeculare, placentis axilibus. Peduneulus simplex v, ramosus, co-florus.—áAer. austr. 
montana. 
333. Arosrasia, Sepala petala et labellum libera, consimilia. Anthere perfect; 2; 
antheridium angustum v. 0. Ovarium 3-loceulare, placentis axilibus, Spicze simplices v. 
ramosee, oo-flore.—4Znd. or., Archip. Malay., Australia trop. 
334. NEuwiEDIA. Sepala et petala libera, consimilia; labellum paullo latius.  Antherze 
perfecte 3. Ovarium 3-loeulare, placentis axilibus, . Spica densa, simplex, floribus parvis.— 
"Malacca, Archip, Malay. 
Taisus Ll. EPIDENDREX. 
l. Pleurothailis, &. Br. in Ait. Hort. Kew. ed. 2, v. 211.  (Humboldtia, Ruiz et Pav. 
Fi. Per. et. Cil. Prod. 121, t. 27 ; Syst. Veg. 233.)—Sepala subzequilonga, erecta v. sub- 
patentia, posticum liberum v. ima basi lateralibus brevissime connatum, lateralia basi v. 
alte connata in unum integrum 2-fidum v. fere 2-partitum, sub pede column:e scpius con- 
cavum v. leviter gibbum. Petala sepalis breviora v. angustiora, nune minima rarius 
sepalis subzequilonga. Labellum petalis brevius v. rarius paullo longius, basi szepius con- 
iractum et eum column:e basi plus minus distincte articulatum ; lobi laterales erecti 
columnam amplectentes v. parvi dentiformes v. obsoleti, medius integerrimus v. emargi- 
natus, subpatens. Columna. labello :sequilonga v. paullo brevior, semiteres, angulis 
nec vere alatis, besi sepius in ied. brevissimum 
producta; clinandrium parvum v. plus minus 
integrum v. breviter 3-lobum.  Anthera terminalis v. intra marginem elinandrii . oper- 
cularis, incumbens, 1-2-locularis, pollinia 2, cerea, globosa ovoidea v. pyriformia, libera 
v. apicibus visco parco cohzrentia. Capsula erecta, obliqua v. fere nutans, subglobosa 
ovoidea v. oblonga, Sreostata p dno. y. 3- d — Caules cespitosi v. rami caulis 
repentis y. rk ig li breves v. brevissimi, apice 1l-foliati, infra 
folium interdum 1-20-vaginati, vaginis in una specie in folia productis, non pseudobulbosi 
Racemi ad basin folii intra vaginam seu spatham longiusculam brevem v. minimam 1-oo. 
simplices, floribundi y. laxe pauciflori, v. in paucis speciebus abbreviati whéscm  denseque 
aggregati. Flores parvi, nunc minimi v. in paucis uli, in 
racemis floribundis sepius secundi.  Bracteze parv, rarius magis biens breviter 
lle swpe in ped lo infra flores vacuzs, nunc omnes minute v. 
obsoletze. 
Species descriptee fere 350 et verisimiliter numerose adhue inedite in montibus Americze tropicze 
latent, ubi genus a Drasilia et Bolivia usque ad Mexieum et Indiam occidentalem extenditur. 
ZLindl. Fol. Orch. 1859. — Reichb. f. in Walp. Ann. vi. 167 ; Beitr. Orch. Centr. Amer. 58, 96; Xen. 
Orch. t. 28, 60, 108, 137, 210 e ii. 24; im Hamb. Gart. Zeit. xvi. 15, 1805 xxi. 294; Otia Hamb. 
18, 92; in Flora, 1865, 275 ; in Linnea xli. 18, 47, 93, 117, 132. 
Genus vastum, quoad inflorescentiam petalorum formam etc. p l etsi ch ib 
iL bene limitat sed nondum in sectiones distinctas diyifuui: Lindley, in Bot. Reg. 
1842, Misc. 68, series proposuit 4, imprimis ex inflorescentia et. habitu sat naturales, quas serius in 
Foliis Orchidaceis usque ad 10 extendit, non semper seque feliciter. Spa/Aacee e.g. species continet 
inter se habitu dissimiles, vagina ad basin inflorescentie seu spatha solito majore junctas. 
spatha tamen in toto fere genere adest et in speciebus inter se quam maxime affinibus magnitudine 
valde differt ; in speciminibus nonnullis P. Matihewsii LindL, inter Macrophylias fasciculatas 
espathaceas collocatz, spatham vidimus ultrapolliearem. Florum structura interior, quoad formam 
petalorum labelli et columnze, si revera characteres probet cum variationibus habitus et inflores- 
centi convenientes, adhue in perpl speciebus i fecte descripta v. scepe in flore unico semel 
tantum observata ad sectiones naturales definiendas haud sufücit. Interea series sequentes e Lind- 
leyanis selectz, etsi male definitze, quoad species plerasque naturales videntur. 
1. Elongate floribunde. Racemi ssepius plures v. in paucis speciebus solitarii, folio multo longiores, 
floribus numerosis sepius parvulis breviter pedicellatis secundis. Hue referrimus species plerasque 
e Spathaceis Lindleyi cum nonnullis ex Elongatis e& Acuminatis. H, B. et K. Nov. Gen. et Sp. t. 90 
