367 



MELAS^OMACEAE : TIBOUCHINA. 



368 



glaberrimis, connective) eglanduloso, majorum longe minorum 

 longiuscule producto; stylo longiusculo, glaberrimo. 



Tabula nostra LXXXVII. Fig. I (habitus cum analyst). 



Lasiandra asperior Cham.! in Linnaea IX. 435; Walp. 

 Repert. II. 128 (non Naud.). 



Pleroma asperior Triana! Melast. 44. 

 Chaetogastra asperior Triana! I. c. 



Caulis erectus vel adscendens, satis flexuosus, robustus, fere usque 

 ad basin irregulariter ramosus, teretiusculns, inferne excoriatus, sordide 

 cinereus, 1 /i— 1 m. alius; rami satis graciles, breviusculi, erecti vel erecto- 

 patuli, rigidiuscnli, panlo ramulosi, cinereo-fusci. Petiolus robustinsculus, 

 leviter compressus, supra vix canaliculars, densiuscule longeque adpresso- 

 strigosus, 1 — 5 mm. longus. Folia erecto-patula, internodiis subduplo 

 longiora, utrinque pallide viridia praecipue snbtns, 3—5 cm. longa, V/a 

 ad 2 cm. lata, superiora saepius satis minora; nervis crassis, supra pro- 

 fuude impressis, snbtus valde prominentibns, mediano panlo crassiore, 

 exterioribus caeteris gracilioribus et paulo brevioribus. Pedicelli robu- 

 stiusculi, erecti, rigidi, breviuscule denseque adpresso-strigosi, 3 — 8 mm. 

 longi. Bracteolae paulo concavae, valde caducae, submembvanaceae, uni- 

 nerviae, utrinque fuscescentes, 3—4 mm. longae, 2— 2 1 /* mm. latae. Ca- 

 lyx cinereus vel demum cinereo-fuscus, tubo basi leviter attenuato, apice 

 non vel vix constricto, 6—7 mm. longo, apice 4—5 mm. lato, segmentis 

 erecto-patulis, flexuosis, demum deciduis, margine fuscis, 4—5 mm. longis, 

 basi 2 mm. latis. Petala patula, purpurea, utrinque glabra, tenuiter 

 multinervia, 2*/« cm. longa, I 1 /*— 2 cm. lata. Staminum filamenta fili- 

 formia, purpurea, subrecta, 6—7 vel 10—11 mm. longa; antherae purpu- 

 reae, satis arcuatae, apice longiuscule attenuatae et paulo pallid iores, 6 

 ad 7 vel 7 — 8 mm. longae, 8 A mm. crassae, loculis non undulatis, con- 

 nective infra loculos 2 vel 5 — 6 mm. long, producto, filiformi, purpureo, 

 paulo arcuato, basi satis incrassato et bilobato, lobis plus minusve diver- 

 gentibus. Ovarium ovoideum, superne breviuscule denseque setulosum; 

 stylus Bubliliformis, atro-purpureus, satis sigmoideo-flexuosus, superne le- 

 viter incrassatus, 17 — 20 mm. longus. Capsula ovoidea, fuscescens, ob- 

 scure 6-sulcata, 7 — 8 mm. longa, 6 mm. crassa. Semina fulva, cuneato- 

 cochleata, satis compressa, apice rotundata vel subtruncata, basi attenuata 

 acutaque, creberrime minuteque tuberculata, s /-* mm. longa, Vs mm. lata. 



Habitat in Brasilia australi: Sello n. 2105, 2539, 4138; in prov. 

 Rio Grande do Std: Tweedie n. 94. 



75. TIBOUCHINA INTERMEDIA Cogn. fruticosa; 

 ramis teretiusculis, junioribus setis brevissimis rigidis crassis 

 adpressis basi inferne brevissime obtuseque productis sub- 

 sparse strigosis, ad nodos densiore breviterque setosis, vetu- 

 stioribus glabratis et plus minusve excoriatis; foliis brevis- 

 sime petiolatis, coriaceis rigidisque, ovatis vel oblongis, basi 

 rotundatis, apice acutiusculis vel obtusis rarius rotundatis, 

 margine integerrimis , 5-nerviis nervis lateralibus usque ad 

 basin liberis, supra brevissime sparseque adpresso-strigosis 

 scaberrimisque, subtus leviter nervuloso-reticulatis ad nervos 

 sparse breviterque adpresso-strigosis caeteris glabris; floribus 

 majusculis ad apices ramorum paucis aggregatis vel subpani- 

 culatis, brevissime pedicellatis, bibracteolatis ; bracteolis mi- 

 nutis, ovatis, apice obtusis vel acutiusculis, intus glabris, 

 extus brevissime sparseque adpresso-strigosis, margine non 

 vel vix ciliatis ; calyce breviuscule denseque adpresso-strigoso, 

 tubo anguste campanulato, teretiusculo, segmentis triangulari- 

 linearibus, apice acutis, margine subpellucidis et brevissime 

 ciliatis, tubo paulo longioribus ; petalis obovatis, basi brevius- 

 cule attenuatis, apice rotundatis, margine vix ciliatis; stami- 

 nibus satis inaequalibus, filamentis glaberrimis, connectivo 



eglanduloso, majorum longe minorum breviter producto ; stylo 

 longiusculo, glabro. 



Lasiandra asperior Naucl.! in Ami. Sc. not. ser. 3. 

 XIII. 132 et Melast. Ill (non Cham.). 



Caulis erectus, leviter flexuosus, satis gracilis, valde irregulariterque 

 ramosus, teretiusculns, excoriatus, sordide cinereus; rami graciles, longius- 

 culi, erecti, leviter flexuosi, satis ramulosi, cinereo-fusci. Petiolus robu- 

 stiusculus, satis compressus, supra leviter canaliculars, brevissime dense- 

 que adpresso-strigosus, 1—3 mm. longus. Folia erecto-patula vel patula, 

 internodiis saepius paulo lougiora, utrinque pallide viridia praecipue sub- 

 tus, IV2— 3 cm. longa, 7—17 mm. lata, superiora saepius paulo minora; 

 nervis crassis, supra profunde impressis, subtus valde prominentibns, me- 

 diano paulo crassiore, exterioribus caeteris satis gracilioribus et paulo 

 brevioribus. Pedicelli robusti, erecti, rigidi, dense breviterque adpresso- 

 strigosi, 2—5 mm. longi. P»racteolae paulo concavae, valde caducae, 

 rigidiusculae, uninerviae, utrinque fuscescentes, 3 — 4 mm. longae, 2 ad 

 3 mm. latae. Calyx sordide cinereus, tubo basi leviter attenuato, apice 

 non vel paulo constricto, 5—6 mm. longo, 3—4 mm. lato, segmentis 

 erecto-patulis, flexuosis, demum deciduis, margine fuscis, 6 — 7 mm. longis, 

 basi 2 mm. latis. Petala patula, purpurea, utrinque glabra, tenuiter 

 multinervia, circiter 2 cm. longa. Staminum filamenta filiformia, purpurea, 

 leviter flexuosa, 7—8 vel 10—11 mm. longa; antberae purpurae, leviter 

 arcuatae, apice longe attenuatae et paulo pallidiores, 6 — 7 vel 7 — 8 mm. 

 longae, 2 /i mm. crassae, connectivo infra loculos 1 — l 1 /* vel 5 — 6 mm. 

 long, producto, filiformi, purpureo, subrecto, basi satis incrassato et bi- 

 lobato, lobis divergentibus. Ovarium anguste ovoideum, superne brevis- 

 sime denseque setosum; stylus filiformis, atro-purpureus, leviter sigmoideo- 

 flexuosus, superne paulo incrassatus, 12 — 15 mm. longus. Capsula ovo- 

 idea, fusca, obscure 5-sulcata, 6 — 7 mm. longa. Semina perfecta ignota. 



Habitat in Brasilia australi: Sello n. 2434 in herb. Berol., Vindob. 

 et Mus. Paris. 



7G. TIBOUCHINA EIEDELIANA Cogn. fruticosa; 

 ramis obtuse tetragonis, junioribus setis breviusculis gracili- 

 bus rigidis adpressis basi inferne brevissime productis sub- 

 sparse vestisis, ad nodos breviuscule denseque setosis, vetu- 

 stioribus glabratis et plus minusve excoriatis; foliis breviter 

 petiolatis, rigidis, oblongis, basi breviuscule attenuatis vel 

 subrotundatis, apice acutis vel acutiusculis, margine longius- 

 cule adpresseque setuloso-ciliatis, 3 — 5-nerviis, supra brevis- 

 sime sparseque adpresso-setulosis scabrisque, subtus breviter 

 sparseque pilosis et ad nervos adpresse longeque setulosis; 

 paniculis terminalibus axillaribusque, parvis, saepius pauci- 

 floris, inferne foliatis ; floribus longiuscule pedicellatis, bibrac- 

 teatis ; bracteis majusculis, ovatis, apice obtusis vel subrotun- 

 datis, margine brevissime ciliatis, intus glabris, extus brevius- 

 cule sparseque adpresso-setulosis; calyce longiuscule denseque 

 setuloso, tubo anguste campanulato, teretiusculo, segmentis 

 triangulari-linearibus, apice acutis, margine longiuscule cilia- 

 tis, tubo paulo longioribus; petalis anguste obovatis, basi 

 breviuscule attenuatis, apice oblique subtruncatis , margine 

 brevissime ciliatis; staminibus satis inaequalibus, filamentis 

 inferne breviuscule sparseque glanduloso-pilosis superne glabris, 

 connectivo eglanduloso, majorum longe minorum breviuscule 

 producto; stylo longiusculo, inferne breviuscule sparseque pi- 

 loso, superne glabro. 



Tabida nostra LXXXVII. Fig. II (habitus cum analysi). 



Caulis erectus, robustiusculus, leviter flexuosus, satis trichotome 

 ramosus, obscure tetragonus, sordide cinereus, IV2— 3 m. altus; rami satis 

 graciles, breviusculi, erecto-patuli, leviter flexuosi, leviter ramulosi, cinereo- 



