441 



ORCHID ACE AE: CATASETUM. 



442 



lateralibus sublongiore, multo latiore quam longo, concavo, 

 lateraliter valde compresso, basi subcordato, profunde tri- 

 lobato, lobis lateralibus erectis, subrhombeis, obtusis, margine 

 apice serrulatis caeterum integerrimis, lobo terminali producto, 

 cuneato-dilatato, apice subtruncato, margine breviuscule fim- 

 briato, disco antice crassiuscale unicostato; columna crassius- 

 cula, semiteretiuscula, clavata, ecornuta, ecirrhosa, clinandrio 

 brevissimo, meinbranaceo, truncato, margine integerrimo. 



Calasetum scurra lieichb. f. in Gard. Chroti. 1872. 

 p. 1003, new ser. VII. 304 et 305. fig. 50 et 51 (1877): 

 Bely. Hort. 1878. p. 103; RoJfe in Journ. Linn. Soc. Low!., 

 Bot. XXVII. 224; Watson, Orch. 90; Stein, Orchideenb. 112. 

 fig. 37 ; Williams, Orch. Grow. Man. edit. 7. p. 14V cam tab.; 

 L Lind. Orch. Exot. 618. 



Pseudobulbi erecti vel ereeto-patuli, recti vel panlo obliqui, basi 

 rotundati, superne plus minusve longe attenuati , primutu laeves, demum 

 profundiuscule plurisulcati , 3—9 cm. longi, Vjt — 3 cm. crass i ; vaoinak 

 arete adpressae, tenuiter multiRtriatne. Folia plus minusve patula, 

 superne sat is recurva, basi conduplicata, caeterum paulo concava vel 

 subplana, plurincrvia, 15—30 cm. louga, 2 — 3 ! /i cm. lata. Pkmjkculuh 

 i-oiimiiiiiis m Ascn, is satis arcnatus et Hexuosua, teretiusculus, lsevis, 

 viridis, 12 — 20 cm. longus; vaoinak mem bran aceae, adpressae, pallide 

 virides, laeves, 5—8 mm. longae. Pbuicklli patentissimi , graciles, recti 

 vel lev iter flexuosi , teretiusculi , pallide virides vel all*)- virides, cum 

 ovario obtuse trigono l 1 /!— 2 cm. lon$i. Bractf.ak adpressae , leviter 

 concavae, pallidae, 3 — 5 mm. longae. Klorks patentissimi vel nutantes, 

 suaveolentes, albidi, nervis virescentibus. Sbpala satla concava, basi paulo 

 attenuata, tenuiter 7-nervulosa, dorsale 12 mm. longum et 6 mm. latum, 

 lateralia satis obliqua, 14 mm. longa et 7 mm. lata. Petala mem- 

 branacea , erecto- patula, leviter concava, paulo obliqua, tenuiter tri- 

 nervulosa nervnlis lateralibus satis ramosia, 11 — 12 mm. longa, 9 mm. 

 lata. Labellum patent issimum , crassiuscule multinervulosum, 15 mm. 

 longum, 25 mm. latum. Columna e recta , leviter recurva, inferne satis 

 attenuata, dorso rotundata, autice plaua, albescens, 7 mm. longa. Florks 

 feminei ignoti. 



Habitat in Ouiana anglica ad 

 Panama, secund. Rtichb. f. loc. cit.; 

 Orinoco: Hort. Linden. In Brasilia 

 venienda. 



Demerara et in Columbia prope 

 in Venezuela secus flum. Alto- 

 septentrionali forsan adhuc in- 



Sect. IV. PSEUDO-CATASETUM Rolfe in Journ. 

 Linn. Soc. Lond., Bot. XXVII. 224 (1889), in Orch. Re>: 

 III. 142; Cogn. in Lindenia X. 54. 



Flores hermaphroditi , interdum dioici et paulo diversi. 

 Labellum saepissime superum , profunde saccatum. Columna 



brevis, robusta, ecirrhosa. 



Species 48-52. 



48. CATASETUM LONGIFOLIUM Lixdl. pseudo- 

 bulbis robustis, fusiformibus vel interdum cylindraceis, paulo 

 compressis, multiarticulatis, junioribus vaginis numerosis 

 membranaceis majusculis vestitis, vetustioribus demum denu- 

 datis; foliis longissimis, deciduis, anguste lineari-ligulatis, 

 acuminatis, basi paulo attenuatis, trinerviis; scapo basilar!, 

 robustiusculo , foliis multo breviore, basi vaginis paucis 

 brevibus remotis acutisque vestito, superne laxiuscule multi- 

 floro; bracteis carnosulis, triangulari-oblongis, acutis, ovario 

 multo brevioribus; floribus mediocribus, longiuscule pedicel- 

 latis; sepalis carnosulis, subaequilongis, ovatis, abrupte acutis, 

 reflexis, subconniventibus ; petalis late ovatis, obtusis vel 



acutiusculis, margine interdum undulato-denticulatis, reflexis, 

 sepalo dorsali aequilongis; labello infero, crassiuscule carnoso, 

 rigido. sepalis lateralibus paulo longiore, profunde saccato 

 sacco rotundato antice depresso, ore reniformi rotundato cum 

 apiculo tumorem bisulcatum efferente, infra limbum mem- 

 brana basi lata longe firobriato-ciliata antice in seriem ciliatum 

 exeunte, disco glabro; columna brevi, crassa, erostrata, circa 

 clinandrium denticulata, uttinque juxta foveam angulo pro- 

 ducto cornuta. 



taselum longi folium 



Rcgvtt 



Mute 



Serf. Orch. tab. 31, in Hook. Lond. Journ. of Hot. II. 672 ; 

 Hook. Cent. Orch. 40. tab. 52; Beer, Prakt. Stud. Fam. Orch. 

 206; DueJiartre, Man Gen. de* Pi IV. 517; Reichb. f. in 

 Walp. Ann. Hot VI. 574 , in Gard. Chron. 1868. p. 1186, 

 m Sound. Refug. Hot 11 tab. 8$; Dm Bugss. L Orchid, 227; 

 Rolfe in Journ. Linn. Soc. Lond., Bot. 225; Watson, Orch 89; 

 Orch. Alb. X. tab. 456 ; William*, Orch. Grow. Man. edit 7. 

 p. 147; Gard. Chron. ser. 3. XXIV 314. 



Moiiachanfhns- hmgifoHns Hook, in Bot. Mag. tab. 3819 



(1841); Brer, Prakt. Stud. Fam. Orch. 270. 



Pskudobclbi denainscule aggregati, plus minutve deflexi vel penduli, 

 recti vel leviter arcuati, saepius utrinquc longe attenuati, pallide virides 

 vel dilute fu»ci et transverse purpurea -fusco mult iannu 1st i, primum laeves. 

 demum leviter multiaulcati. 15— 22 cm. longi, 3— 4 ! /i cm. craaai; vaoinak 

 diatiche imbricatae, arete adpressae, late triangulares, albidae , tenuiter 

 Biultiatriatae. Folia satis conacea , plus minusve patula et recurva vel 

 pendula, leviter concava, Hnpra intense viridia, snbtus paulo pallidiora, 

 basi cum vaginis articulata , 6 — 9 dm. et interdum ..usque ad 24 dm." 

 longa, lVt— 2'/« dm. lata; nervis supra leviter impressis, subtns satis 

 prominentibus; nervulia secundariis satis numerosis, gracilibus. Pkdun- 

 culus communis paulo flexuoaus, teres, laevis , fuscus vel intense pur- 

 pureus, 2—3 dm. longus, 3—4 mm. craasus; vaoinak submembranaceae, 

 arete adpressae, laeves, fuscescentes, 6 — 9 mm. longae. Pedicrlm patuli 

 vel erecto-patuli, recti vel leviter arcuati, robustiusculi, teretiusculi, atro- 

 purpurei, cum ovario obtuse trigono et 6-sulcato 8—5 cm. longi. Bracteak 

 adpressae vel interdum subreflexae, satis concavae, fuscescentes, 7 — 10 mm. 

 longae. Florf.s penduli, segmentis purpurascentibus, inferne dilute 

 viridibus. Sepala paulo concava, basi vix constricts, 13 — 15 mm. longa, 

 7—9 mm. lata, lateralia paulo obliqua. Petala submembranacea, leviter 

 concava, undulata, satis obliqua, basi paulo attenuata, 13 — 15 mm. longa, 

 9 — 11 mm. lata. Labellum pendulum, aurantiaeo-rubrum et minute 

 rlavo-maculatum , apice atro-violaceura, fimbriis intense purpureis, sacco 

 circiter 2 cm. profundo et fere totidem lato. Columna erecta, dorso 

 rotundata, antice paulo concava, basi leviter attenuata, flavescens, 7 ad 

 8 mm. longa et fere totidem lata. Capbula perfecta ignota. 



Habitat in Ouiana anglica seeus flum. Demerara : Morri$, Schom- 

 burgk, H. Gloster; MOM flum. Berbice : Schomburgk. In Brasilia septen- 

 trionali forsan adhuc invenienda. 



49. CATASETUM CLAESIANUM Cogn. pseudo- 

 bulbis robustiusculis, oblongo-conicis, paulo compressis, pluri- 

 articulatis, vaginis pluribus majusculis vestitis; foliis magnis, 

 anguste ligulatis, acuminatis, inferne longe attenuatis, tri- 

 nerviis; scapo basilari, robustiusculo, foliis multo breviore, 

 inferne vaginis pluribus brevibus remotissimis obtusiusculis 

 vel acutis vestito, superne sparse 4 — 5-floro; bracteis mem- 

 branaceis, triangulari-lanceolatis , longiuscule acuminatis, 

 ovario subdimidio brevioribus; floribus mediocribus, brevius- 

 cule pedicellatis; sepalis membranaceis, ligulato-lanceolatis, 



