415 



MELASTOMACEAE : TIBOUCHINA. 



416 



glabra, tenuiter plurinervia, cireiter 2 cm. longa. Staminum filaraenta 

 filiformia, purpurea, subrecta, 5 vel 6 mm. longa; antherae purpureae, 

 subrectae, apice paulo pallidiores , 4 vel 472— 5 mm. longae, 3 /* mm. 

 crassae, connective- infra loculos 2— 1 x ji, mm. long, producto, filiformi, le- 

 viter incur vato. Ovarium ovoideum, semi-inferum, superne breviter den- 

 seque setulosum; stylus purpureus, subfilifornris, subrectus, 10 — 12 mm. 

 longus. Capsula fuscescentia , snbglobosa, leviter 5-sulcata , usque ad 

 medium 5-valvis, 6 mm. crassa. Semina fuscescentia, valde cochleata, 

 apice rotundata, basi acuta, creberrime minuteque tuberculata, 3 A mm. 

 longa, V«— 2 /3 mm. lata. 



Habitat in rupibus ad Campos de Itatiaia prov. Minas Geraes: 

 Waivra II. n. 416, Glaziou n. 6529. — Floret Januario. 



126.? TIBOUCHINA DUBIA Cogn. fruticulosa; caule 

 ramosissimo ; ramis teretiusculis, junioribus setis brevibus ri- 

 gidis adpressis basi incrassatis et inferne leviter productis 

 densiuscule hirsutis, vetustioribus glabratis laevibusque sae- 

 pius excoriatis ; foliis breviuscule petiolatis, rigidiusculis, ova- 

 tis vel ovato-oblongis, basi rotundatis, apice acutis vel ob- 

 tusiusculis, margine integerrimis et longe adpresseque setoso- 

 ciliatis, trinerviis, supra inter nervos sparsissime et brevius- 

 cule setosis, subtus vix setulosis et ad nervos densiuscule 

 longeque adpressosetosis; floribus pentameris, parvis, breviter 

 pedicellatis, bibracteatis , ad apices ramorum axillaribus ter- 

 minalibusque , solitariis — ternis; calycis tubo ovoideo, setis 

 longiusculis rigidis patulis arcuatis inferne valde incrassatis 

 densiuscule hirsuto. 



Lasiandra (labia Cham.! in Linnaea IX. 437; Naud. in 

 Ann. Sc. nat. ser. 3. XIII. 157 et Melast. 136; Walp. Be- 

 pert. II. 128. 



Pleroma hospitum Triana, Melast. 42 (pro parte — excl. 

 syn. DC). 



Caulis erectus vel adscendens, satis gracilis, inferne subsimplex, 

 superne ramosissimus, saepius excoriatus, fuscescens; rami erecti, longius- 

 culi, gracillimi, ramosissirai, cinereo-fusci. Petiolus gracilis, teretiusculus, 

 densiuscule longeque adpresso-setosus, 4 — 5 mm. longus. Folia erecto- 

 patula, internodiis 2 — 3-plo longiora, supra intense viridia, subtus viridi- 

 cinerea, 17* — 27* <-'m. longa, 6 — 12 cm. lata, superiora satis minora; 

 nervis gracilibus, supra leviter impressis, subtus satis prominentibus, me- 

 diano paulo crassiore. Flores ignoti, ,,bractea duplici magna late ovata 

 villosa ciliataque involucrati." Pediceu.i fructiferi robustiusculi , tere- 

 tiusculi, densiuscule longeque setosi. Capsula subglobosa, leviter 5-sul- 

 cata, apice leviter attenuate obscure 5-lobata et longiuscule denseque se- 

 tnlosa, — 7 mm. crassa. Semina fuscescentia, leviter cocbleata, apice 

 rotundata vel subtruncata, basi acuta vel obtusiuscula, creberrime tuber- 

 culata, 3 /* mm. longa, 7* nam. lata. 



Habitat in Brasilia, loco haud indicato: Sello n. 4211; in prov. 

 S. Paulo: Gaudichaud n. 795. 



127. T1BOUCHINA MINUTIFLORA Cogn. fruticu- 

 losa; caule ramosissimo; ramis obscure tetragonis, setis lon- 

 giusculis rigidis adpressis basi incrassatis et inferne longius- 

 cule acuteque productis densiuscule hirsutis praecipue ad no- 

 dos; foliis breviter petiolatis, rigidis, ovato-oblongis, basi 

 rotundatis, apice acutis vel obtusiusculis, margine integerrimis 

 et adpresse setoso-ciliatis, trinerviis, supra longiuscule dense- 

 que bullato-strigosis, subtus breviter denseque villosis et ad 

 nervos densiuscule longeque adpressosetosis; floribus tetra- 

 meris, minutis, brevissiine pedicellatis, ebracteatis, ad apices 



ramulorum axillaribus terminalibusque, solitariis vel ternis; 

 calyce setis brevibus subadpressis rigidis inferne valde in- 

 crassatis densiuscule hirsuto, tubo campanulato-ovoideo, seg- 

 ments caducis, triangulari-subulatis , apice acutissimis, tubo 

 brevioribus; petalis obovatis, basi paulo attenuatis, apice ro- 

 tundatis vel subtruncatis, margine longiuscule ciliatis; stami- 

 nibus paulo inaequalibus, filamentis glabris, antheris oblongis, 

 apice non attenuatis et late suboblique porosis, connectivo 

 infra loculos longiuscule producto ultra insertion em filamenti 

 antice leviter porrecto et distincte bilobato; stylo brevi, gla- 

 bro, apice attenuate. 



Tabida nostra XCV. Fig. I (habitus cum analysi). 



Caules verisimiliter numerosi, adscendentes, teretiusculi , graciles, 

 primum setosi, demum glabri, usque ad basin ramosissimi, 2—4 dm. alti; 

 rami graciles, breviusculi, erecto-patuli, satis ramulosi, cinereo-fusci. Pe- 

 tiolus satis gracilis, teretiusculus, setis crassis longiusculis adpressis basi 

 inferne brevissiine productis densiuscule birsutus, 2—3 mm. longus. Folia 

 patula, internodiis longiora, supra pallide viridia, subtus viridi-cinerea, 

 17, — 2 cm. longa, 6—10 mm. lata, superiora paulo minora; nervis cras- 

 siusculis, supra profunde impressis, subtus satis prominentibus, mediano 

 paulo crassiore. Pedicelli satis graciles, breviuscule denseque setosi, sae- 

 pius arcuati, 1 — 4 mm. longi. Calyx cinereus vel interdum fuscescens, 

 tubo basi rotundato, apice leviter constricto, 3 mm. longo, 2 — 27* mm. 

 la to, segmentis erectis, rigidis, 17* — 2 mm. longis, basi s /* mm. latis. 

 Petala erecto-patula, canescentia, utrinque glabra, obscure plurinervia, 

 3 mm. longa, 2 — 27* mm. lata. Staminum filamenta filiformia, subrecta, 

 2 mm. longa; antherae pallidae, subrectae, 17* — 17* mm. longae, */* mm. 

 crassae, connectivo infra loculos 3 ji — 1 mm. long, producto, filiformi, sub- 

 recto. Ovarium ovoideum, 4-loculare, superne breviuscule denseque seto- 

 sum; stylus filiformis, fuscescens, subrectus, 3 — 4 mm. longus. Capsula 

 perfecta ignota. 



Habitat in prov. Rio de Janeiro: Glaziou n. 8366 in herb. Eichl. 

 et Warming. 



128. TIBOUCHINA CINEREA Cogn. fruticulosa; 

 caule satis trichotome ramoso; ramis obtuse tetragonis, setis 

 longiusculis rigidis arete adpressis basi leviter incrassatis et 

 inferne breviter productis subsparse hirsutis praecipue ad 

 nodos ; foliis breviter petiolatis, rigidis, ovatis, basi rotundatis, 

 apice obtusis vel saepius rotundatis, margine integerrimis et 

 setoso-ciliatis, 5-nerviis nervis lateralibus basi breviuscule co- 

 alitis, supra longiuscule denseque bullato-strigosis, subtus lon- 

 giuscule denseque sericeo-setulosis et ad nervos densiuscule 

 longeque adpressosetosis; floribus tetrameris, minutis, ebrac- 

 teatis, breviter pedicellatis, ad apices ramorum axillaribus 

 terminalibusque, solitariis vel saepius brevissime racemosis; 

 calyce setis longiusculis subadpressis rigidis inferne valde 

 incrassatis densiuscule hirsuto, tubo campanulato, segmentis 

 caducis, triangulari-subulatis, apice acutissimis, tubo brevio- 

 ribus ; petalis obovatis, basi paulo attenuatis, apice rotundatis 

 vel subtruncatis, margine breviuscule ciliatis; staminibus paulo 

 inaequalibus, filamentis glabris, antheris anguste ovatis, apice 

 non attenuatis et late suboblique porosis, connectivo infra 

 loculos longiuscule producto ultra insertionem filamenti antice 

 leviter porrecto et obscure vel leviter bilobato ; stylo brevius- 

 culo, glabro, apice non attenuato. 



Tabula nostra XCV. Fig. II (habitus cum analysi). 



Caulis erectus, satis robustus, obscure tetragonus, primum setosus, 

 demum glaber et sublaevis, cinereus; rami satis graciles, breviusculi, 



