157 



MELASTOMACEAE : LAVOISIEKA. 



158 



foliis leviter approximatis non imbricatis, coriaceis, subsemi- 

 amplexicaulibus, patulis, oblongo-lanceolatis, apice acutissimis, 

 leviter carinatis, dorso longiuscule sparseque ciliatis, margine 

 vix callosis et longiuscule sparseque ciliatis, utrinque glaber- 

 rimis; floribus mediocribus, terminalibus, subsolitariis, 6-meris; 

 calycis tubo anguste campanulato, basi et apice glabro, ad 

 medium brevissime glanduloso-hirsuto, segmentis distantibus, 

 membranaceis , fuscis, linearibus, acutissimis, margine longe 

 ciliatis, tubum subaequantibus ; petalis obovato-oblongis, apice 

 rotundatis vel subtruncatis, margine leviter ciliatis. 



Lavoisiera insignis DC. Prodr. III. 103 et Mem. Melast. 

 15. t. 2; Triana Melast. 30. 



Lavoisiera imbricata var. a. insignis Cham.! in Linnaea 

 IX. 369. 



Lavoisiera centiformis var. 7. insignis Naud. in Ann. sc. 

 nat. ser. 3. II. 153, XII. 224 et Melast. 29. 



Frutkx satis ramosus, irregulariter 2 — 3-chotomus, V» — 1 ni. altus. 

 Caulis erectus, robnstus, glaberrimus , obscure articulatus, cinereo-fuscus ; 

 rami erecti, elongati, robustiusculi, cinereo-fusci, glaberrimi, distincte arti- 

 culati, ramulis supremis subcorymbosis. Folia interuodiis 2 — 3-plo lon- 

 giora, pallide viridia, utrinque laevissiraa, margine leviter pallidiora, 10 

 ad 15 mm. longa, 4—8 mm. lata, rarissime obscure trinervia, floralia 

 paulo majora; nervo mediano satis gracili, subtus paulo prominente. Ca- 

 lycis tubus atro-fuscus, obscure sulcatus, basi subacutus, ultra medium 

 leviter constrictus, apice vix dilatatus, 5 mm. longus, apice 3 — 4 mm. 

 latus; segmenta erecta, enervia, 4 — 5 mm. longa, 1 — l 1 /^ mm. lata. Pe- 

 tala erecto-patula, inferne longe attenuata, distincte 7-nervia, 14 — 15 mm. 

 longa, 7 — 10 mm. lata. Staminum filamenta capillaria, subrecta, purpurea, 



4 vel 5 mm. longa; antherae atro-purpureae, oblongae, apice breviter flavo- 

 appendiculatae , 2 l /s — 3 mm. longae, 3 /4 mm. crassae, counectivo infra lo- 

 culos 3 A mm. long, producto capillari subrecto ultra insertionem filamenti 

 non porrecto et leviter bilobato, vel 3 mm. long, producto filiformi valde 

 arcuato ultra insertionem filamenti longiuscule porrecto et leviter dilatato. 

 Ovarium ovoideum, atro-fuscum, usque ad medium liberum, apice rotun- 

 datum et leviter 6-sulcatum ; stylus filiformis, purpureus, glaber, flexuosus, 

 superne leviter incrassatus, 5 mm. longus. Capsula calyce persistente 

 subvestita, subglobosa, atro-fusca, apice rotundata et leviter 6-sulcata, 



5 mm. crassa. Semina fusca, ovoideo-oblouga , recta vel leviter arcuata, 

 utrinque rotundata, 2 /s — 3 /* mm. longa, l /» mm - crassa, testa tenuissime 

 regulariterque foveolata. 



Habitat in prov. Minas Geraes: Netto, Langsdorff n. 2055, 2097, 

 2098; ad Serra de Garassa: Sello n. 1168, 1752; ad OnroPreto: Glaus- 

 sen n. 360 A; in prov. Bio de Janeiro: Glaziou n. 8360 part, in herb. 

 Warming. 



32. LAVOISIERA GLAZIOVIANA Coon, ramis ob- 

 scure tetragonis, usque ad basin foliosis vel interdum inferne 

 plus minusve denudatis; foliis approximatis non vel laxiuscule 

 imbricatis, coriaceis, sessilibus, patulis, oblongo-lanceolatis, 

 apice acutis, leviter carinatis, dorso longiuscule et subappresse 

 ciliatis, margine non vel vix. callosis et longiuscule sparseque 

 ciliatis, utrinque glaberrimis; floribus mediocribus, solitariis, 

 terminalibus, 6-meris; calycis tubo campanulato, inferne den- 

 siuscule breviterque glanduloso-hirsuto, apice glabro, segmentis 

 subdistantibus, foliaceis, pallide viridibus, lanceolato-linearibus, 

 apice acutissimis, margine integerrimis, tubo duplo longioribus; 

 petalis ovato-oblongis , apice rotundatis vel acutiusculis , mar- 

 gine integerrimis. 



Lavoisiera imbricata Benth.f in Hook Jonrn. of Bot. II. 

 300 (nomen tantum, — non DC). 

 Melastom. 



Lavoisiera imbricata var. insignis Gardn.! in Hooh. Lond. 

 Jourri. of Bot. II. 344 (nomen tantum, — non Cham.). 



Frutex satis ramosus, irregulariter 2 — 3-chotomus. Caulis erectus, 

 robustus, glaberrimus, leviter articulatus, cinereo-fuscus; rami erecto-patuli, 

 robustiusculi, breviusculi, cinerei, distincte articulati, glabri vel ad nodos 

 breviter pilosuli. Folia internodiis triplo longiora, pallide viridia, utrin- 

 que laevia vel tenuissime punctulata, margine paulo pallidiora, basi bre- 

 viter attenuata subpetiolulata, 12 — 13 mm. longa, 5 — 6 mm. lata, floralia 

 paulo latiora; nervo mediano gracili, subtus leviter prominente. Calycis 

 tubus flavo-cinereus , obscure nervosus, basi subacutus, ad medium leviter 

 constrictus, superne subdilatatus, 3 — 4 mm. longus, apice 3 mm. latus; 

 segmenta erecta, tenuiter trinervia, 6 — 7 mm. longa, l 1 /* — 2 mm. lata. 

 Petala purpurea, erecto-patula, inferne breviter attenuata, tenuiter 7-ner- 

 via, 12 — 13 mm. longa, 7 — 8 mm. lata. Staminum filamenta capillaria, 

 purpurascentia, leviter flexuosa, 4 — 5 mm. longa; antherae purpureae, ob- 

 longae, 2 mm. longae, 2 /3 mm. crassae; connectivo infra loculos 1 mm. 

 long, producto capillari leviter arcuato ultra insertionem filamenti non 

 porrecto et minute bilobato, vel 4 mm. long, producto filiformi arcuato 

 ultra insertionem filamenti longiuscule porrecto et valde dilatato. Ovarium 

 ovoideum, fuscum, fere usque ad medium liberum, apice rotundatum et 

 leviter 6-sulcatum; stylus filiformis, purpureus, glaber, subrectus, superne 

 non dilatatus, 4 mm. longus. Capsula subglobosa, fusca, apice subtrun- 

 cata et distincte 6-sulcata, calyce persistente vestita, 3 — 4 mm. crassa. 

 Semina pallide fusca, ovoideo-oblonga , leviter arcuata, basi subtruncata, 

 apice leviter attenuata et obtusiuscula , 2 /3 mm. longa, Vs mm. crassa, 

 testa leviter regulariterque foveolata. 



Habitat in prov. Bio de Janeiro ad Serra dos Orgdos: Glaziou 

 n. 585, 2864, 4304?, 9449 in herb. Brux., Eichler., Warming, et Kew., 

 Gardner n. 381 in herb. Boiss. , Francav. , Kew. et Deless. , Guillcmin 

 n. 957 in herb. Deless. 



33. LAVOISIERA FRANCAVILLANA Cogn. ramis 

 teretiusculis , usque ad basin foliosis; foliis laxiuscule imbri- 

 catis, coriaceis, subsemiamplexicaulibus, apice leviter patulis, 

 oblongo-lanceolatis, apice acutis, valde carinatis, dorso sparse 

 ciliatis vel superne laevibus, margine distincte callosis et 

 breviuscule ciliatis, utrinque glaberrimis; floribus majusculis, 

 solitariis, terminalibus, 6-meris; calycis tubo anguste campa- 

 nulato, basi et apice glabro, ad medium leviter villoso-hirsuto, 

 segmentis subcontiguis, tenuiter membranaceis, scariosis, basi 

 et apice pallide cinereis, ad medium nigricantibus , anguste 

 oblongis, apice rotundatis et mucronulatis , basi leviter con- 

 strictis, margine serrulato-ciliatis, tubo triplo longioribus; pe- 

 talis obovatis, apice oblique subtruncatis, margine integerrimis. 



Fruticulus satis ramosus, 2 — 3-chotomus, 3 — 5 dm. altus. Caulis 

 erectus, robust iusculus, inferne glaber superne leviter villoso-hispidulus 

 praecipue ad nodos, obscure articulatus, cinereo-fuscus; rami erecti, fasti- 

 giati, satis graciles, breviusculi, leviter striati, puberuli, cinerei. Folia 

 internodiis 3 — 4-plo longiora, pallide viridia, utrinque laevia, margine pal- 

 lidiora, 7 — 11 mm. longa, 3—6 mm. lata, floralia paulo latiora et obscure 

 triuervia; nervo mediano crassiusculo, subtus satis prominente. Calycis 

 tubus inferne nigricans superne pallide cinereus, tenuiter nervosus, basi 

 subacutus, ad medium constrictus, superne leviter dilatatus, 4 — 5 mm. 

 longus, apice 3 mm. latus; segmenta erecto-patula, tenuiter trinervia, 11 

 ad 12 mm. longa, 2 l /v — 3 mm. lata. Petala pnrpureo-violacea , erecto- 

 patula, inferne longiuscule attenuata, tenuiter 7-nervia, 2 cm. longa, 10 ad 

 12 mm. lata. Staminum filamenta capillaria, purpurascentia, recta, 5 vel 

 6 mm. longa; antherae purpureae, oblongae, 2 i /i mm. longae, 3 /4 — 1 mm. 

 crassae, apice brevissime pallide appendiculatae ; connectivo infra loculos 

 1 mm. long, producto capillari recto ultra insertionem filamenti vix por- 

 recto et non dilatato, vel 4 — 5 mm. long, producto filiformi leviter arcuato 

 ultra insertionem filamenti breviter porrecto et leviter dilatato. Ovarium 

 ovoideo-oblongum, fuscum, fere usque ad medium liberum, apice acutum 

 et distincte 6-sulcatum; stylus filiformis, purpurascens , glaber, subrectus 

 5 mm. longus. Capsula perfecta ignota. 



21 



