222 Fr. Kränzlin. — Orchidaceae-Odontoglosseae II. 



patentia, e basi cuneata obovato-oblonga, vix unguiculata dicenda, margine leviter 

 repanda, lutea, a basi dimidium usque castanea, 1 ad 1,3 cm longa, 4 vel 5 mm, petala 

 ad 7 mm lata. Labellum basi cordatum, toto ambitu quadrato, angulis rotundatis, 

 quadrilobum, lobi laterales orbiculares, lobus intermedius reniformis profunde bilobulus, 

 lobulis rotundatis, callus disci pulvinar dense pilosum praestans, labellum pallide luteum, 

 basin versus punctis vel maculis purpureis ornatum, inter lobos laterales 1,5 cm latum, 

 lobus intermedius 8 ad 9 mm latus, a basi ad sinum lobi intermedii circ. 1 cm longus. 

 Gynostemium breve, alae parum evolutae, infra et antice rotundatae, rostellum breve, 

 anthera alta, antice vix producta. — Fl. Novembri et Decembri. , 



Südbrasilianische Provinz. Staat Minas Geraes, bei las Caldas (Lindberg 

 n. 538!, Regneil ser. I. n. 428!). Staat Rio de Janeiro, bei Neu-Freiburg (Harrison); 

 auf dem Corcovado (Gardner n. 125/2). — Ohne bestimmten Standort in Südbrasilien 

 (Sellow n. 92!); Staat Paranä, bei Serinha (Düsen n. 739 1 !); Alto Parana (Fiebrig 

 n. 6246!); Staat Rio Grande do Sul, bei S. Paulo (Wacket). Ex colonia S. Angelo 

 (Exp. I. Regneil, Lindman n. A. 795!). — Nach lebendem Material! 



Nota. Varietates sie dietae »grandiflorum« Regel in Ind. Sem. hört. Petrop. (1856) 22 et 

 Anm. Sc. Nat. S. 4, VI. (1856) 377, var. majus Will. Orch. Grow. Man. ed. 7, 628 et var. cu- 

 preum hört, merae formae et minime varietates sensu graviore existimandae sunt. Quam tarnen 

 exposuit formam cl. 0. Porscb 1. supra c. in figura sua 7 et quam depinximus sec. iconem 

 Lindmanianam in tabula nostra 1. supra c. meiiore jure inter varietates militat. Sepalum enim 

 dorsale et petala elongato-oblonga sunt, sepala lateralia multo breviora, oblique retusa et post 

 labellum (floris a fronte visi) semiabscondita, labelli lobi laterales haud orbiculares sed oblongi, 

 marginibus manifeste repandis, lobus intermedius obtriangulus, fere flabellatus et leviter repandus 

 ab indole floris typici maxime discrepat. Golor tarnen floris omnibus characteribus a typicis 

 tarn diversi omnino cum colore florum typicorum convenit. Quae cum ita sint a nova specie 

 proponenda absistimus, meiiore autem jure quam varietates illae supra enumeratae hanc pro 

 varietate habendam censemus et var. Porschianam Kränzl. characteribus supra expositis di- 

 stinetam proponimus. 



219. 0. divaricatum Lindl. in Rot. Reg. XIII. (1 827) 1. 1 050 ; Gen. et Sp. Orch. 205 ; 

 Fol. Orch. Oncid. 35; Lodd. Rot. Gab. t. 1212; van Geel, Sert. botan. I. t. 131; Reichenb. 

 Fl. exot. t. 95; Paxt. Mag. Rot. III. t. 4; Reichb. f. in Walp. Ann. VI. 774; Rarb. Rodr. 

 Struct. Orch. t. H ; Veitch, Man. Orch. PI. VIII. 34; Williams, Orch. Grow. Man. 7, ed. 608; 

 Journ. d. Orch. VI. 199; Sander, Orch. Guide 179; Cogn. in Fl. Rras. III. 6. 421, t. 80. — 

 Pseudobulbi pro ratione parvi, caespitosi, cataphyllis ipsis longioribus, triangulis suffulti, 

 late oblongi, suborbiculares, fere diseiformes, compressi, monophylli, 2 ad 3 cm longi, 

 2,5 ad 4 cm lati. Folia elliptica vel oblonga, strieta, obtusissima vel rotundata vel 

 imo minute biapiculata, apiculis obtusis, crassa, leviter coneava, 15 ad 25 cm longa, 

 ad 10 cm lata. Scapus praealtus (ad 2 m), tenuis, substrictus vel leviter flexus, in 

 paniculam amplissimam, divaricatam terminans, rami saepius iterum ramulosi, fractiflexi, 

 interdum geniculati, bracteae florum minutissimae, triangulae, reflexae, pedicelli 8 ad 

 1 mm longi, tenues. Sepala petalaque inter se magnitudine vix diversa obovata, 

 subspathulata, apice rotundata, 10 ad 11 mm longa, antice 6 mm lata, castanea, 

 apieibus et partim margine lutea. Labellum sessile, lobi laterales semiorbiculares, lobus 

 intermedius paulo minor vel subaequimagnus, rotundatus, antice minute bilobus, totum 

 labellum margine crenulatum, flavum, castaneo-maculatum, 1 ,2 cm longum, basi" inter 

 lobos laterales 1,5 cm latum, lobus intermedius 5 mm latus, crista labelli 4-partita, 

 pulvinaris, dense pubescens. Gynostemium breve, crassum, alae latiusculae, irregulariter 

 rotundatae, integrae, rostellum et anthera antice non producta, anthera cucullata. 

 Capsula anguste oblonga, obtuse trigona, apice et basi acuta, longitudinaliter 6-sulcata, 

 3,5 cm longa, 8 mm crassa. 



Var. cupreum Lindl. in Rot. Reg. XIII. (1827) sub t. 1050. — Differt a typo 

 >perianthii foliolis angustioribus cupreis vix maculatis«. 



Südbrasilianische Provinz. Rio de Janeiro (St. Hilaire Ser. 1A n. 684); 

 am Corcovado und in der Serra dos Argoas im District Ilha Grande (Descourtilz); 

 ohne genaueren Standort (Glaziou n. 16375!); Minas Geraes (Widgren n. 428 I. Ser.). 



