243 



MELASTOMACEAE: MACAIEEA. 



244 



tubo paulo longioribus ; petalis ovato-oblongis, apice rotundatis ; 

 staminibus satis inaequalibus , filamentis inferne subglabris 

 superne pilis glanduliferis brevissime hirtellis, connectivo infra 

 loculos breviter vel brevissime producto, basi postice gibboso ; 

 ovario quadriloculari; stylo brevissime sparseque glanduloso- 

 hirtello, staminibus longiore. 



Macairea Radula I)C. Prodr. III. 109; Naitd. in Ann. 

 Sc. nat. ser. 3. XIII. 34 et Melast. 99; Triana Melast. 37. 

 Rhexia Radula Bonpl! Rhex. 107. tab. 41. 



Caulis erectus, rigidus, robustus, rectus, demuni excoriatus, fer- 

 rugineo-fuscns ; rami obscure tetragoni, graeiles, breves, erecto-patuli , fer 

 ruginei. Petiolus robustissimus , compressus, supra leviter canaliculatus, 

 longiuscule deuseque appresso-setulosus, G— 10 mm. lougus. Folia plana, 

 patula, rigida, internodiis duplo longiora, supra sordide fusca, subtus fer- 

 ruginea transverse nervulosa et leviter foveolata, 6 — 8 cm. longa, 4 — 47'2 cm. 

 lata, superiora vix minora ; nervis supra satis impressis, subtus valde pro- 

 minentibns et dense longeque appresso-setulosis , mediano robustissimo, 

 lateralibus multo gracilioribus , exterioribus gracillimis submarginalibns. 

 Panicula satis congesta, circiter 1 dm. longa. Bkacteae tenuiter mem- 

 branaceae, sessiles, lanceolatae vel lineari subulatae, basi leviter attenuatae, 

 apice longe acuminatae, obscure trinerviae, saepius concavae , supra gla- 

 l)riusculae, subtus densiuscule longeque pilosae, margine longe ciliatae, 

 cinereo-fuscae, 4—9 mm. longae, 1 — 3 mm. latae. Pedicei.li subfiliformes, 

 rigidiusculi, sparse longeque pilosi et dense breviterqne glanduloso-birtelli, 

 1 — 4 mm. longi. Calyx sordide fuscus, tubo tenuiter 8-nervi, minute 

 denseque punctato-glanduloso , basi acutiusculo, superne saepius leviter 

 constricto, 2'A mm. longo, 2 mm. lato, segmentis erecto-patulis, leviter 

 flexuosis, 3 — 4 mm. longis, basi V« — s /i mm. latis. Petala patula, leviter 

 asymmetrica , extus glaberrima , intus sub lente minutissime denseque 

 pnnctato-papillosa, reticnlato-7 — 9-nervia, basi paulo attenuata, 7 — 9 mm. 

 longa, 4—6 mm. lata. Staminum filamenta subcapillaria, purpurea, leviter 

 flexuosa, apice vix arcuata, 3 vel 5 mm. longa; antberae purpurascentes, 

 leviter arcuatae, apice pallidae, 3 vel 372 mm. longae, Vs mm. crassae, 

 connectivo infra loculos 1 vel 2 1 /* mm. longos producto, filiformi, valde 

 arcuato. Ovarium anguste ovoideura, apice densiuscule breviterque glan- 

 duloso-pilosum , l*/l mm. longum; stylus filiformis, pnrpureus, leviter 

 sigmoideus , superne leviter incrassatus, 12 — 13 mm. longus. Capsula 

 calyce persistente vestita, atro-fusca, ovoidea, distincte 4-sulcata, fere usque 

 ad basim 4-valvis, 5 mm. longa, 37'2 mm. crassa. Semina fusca, leviter 

 cocbleata, basi attenuata et acntiuscula, apice rotundata, dorso distincte 

 luberculata, 1 mm. longa, '/* mm. crassa. 



Habitat in Brasilia loco hand indicato: Bonpland. 



3. MACAIREA SERICEA Cogn. caule irregulariter 

 di-trichotome ramosissimo; ramis erecto-patulis, teretiusculis, 

 pilis longissimis sericeis rigidiusculis arete adpressis densis- 

 sime vestitis, praecipue ad nodos ; foliis longiuscule petiolatis, 

 oblongis vel oblongo-lanceolatis, apice acutis vel rarius sub- 

 rotundatis, basi leviter attenuatis, margine integerrimis, quiu- 

 tuplinerviis , supra longissime denseque setulosis, subtus 

 densissime longeque sericeo-pilosis ; floribus rubris vel rubro- 

 violaceis, breviter pedicellatis, in paniculam multifloram inferne 

 foliosam dispositis; calyce densiuscule longeque piloso, tubo 

 campanulato, segmentis subulatis, acutissimis, in setam elon- 

 gatam abeuntibus, tubum subaequantibus ; petalis obovatis, 

 apice rotundatis; staminibus satis inaequalibus, filamentis 

 inferne glabriusculis superne pilis glanduliferis brevissime 

 hirtellis, connectivo infra loculos longe vel breviter producto, 

 basi leviter incrassato postice brevissime bilobato; ovario 

 quadriloculari ; stylo glabriusculo, staminibus paulo longiore. 



Tabula n ostra L VIII (habitus cum analysi). 



Caulis erectus, robustissimus, satis flexuosns, teretiusculus, sordide, 

 cinereus demum subglaber et rugosulus vel excoriatus, inferne longe denu- 

 datus, fere usque ad basim ramosus, 6 — 9 dm. altus ; rami robusti, elon- 

 o-ati satis ramulosi, ferruginei vel rubescentes. Petiolus robustissimus, 

 vix compressus, supra leviter canaliculatus, longissime denseque appresso- 

 setulosus, 1 — 2 cm. longus. Folia plana vel plus minusve plicata, patula 

 vel erecto-patula, internodiis paulo longiora, supra atro-viridia vel sordide 

 fusca, subtus viridi-cinerea vel interdum rubescentia et transverse nervu- 

 losa 4 — 7 cm. longa, 172—372 cm. lata; nervis supra leviter impressis, 

 subtus satis prominentibus et longissime denseque appresso-setulosis, me- 

 diano robustissimo, lateralibus gracilioribus, exterioribus gracillimis sub- 

 marginalibus. Panicula plus minusve congesta, 1 —2 dm. longa. Bracteae 

 tenuiter membranaceae, sessiles, lanceolatae vel liueares, basi vix attenuatae, 

 apice longiuscule acuminatae, tennissime 5— 7-nerviae, supra glabrae vel 

 leviter puberulae et f uscescentes , subtus longiuscule denseque pilosae et 

 viridi-cinereae, margine longe ciliatae, 6—10 mm. longae, 1 — 3 mm. latae. 

 Pedicelli filiformes, rigidiusculi, densiuscule longeque pilosi, 1—5 mm. 

 longi. Calyx cinereus vel cinereo-fnscus, tubo tenuissime 8-nervi, basi 

 subrotundato, apice n.m constricto, 3 mm. longo, 2— 2V» mm. lato, seg- 

 mentis erecto-patulis demuni reflexis, 2— 3 1 /* mm longis, basi 3 /-i— 1 mm. 

 latis. Petala patula, leviter asymmetrica, ntrinque sub lente minutissime 

 pnnctato-papillosa, reticulato-5 — 7-nervia, basi paulo attenuata, 7 — 8 mm. 

 longa, 5 — 6 mm. lata. Staminum filamenta capillaria, purpurascentia, le- 

 viter flexuosa, apice satis arcuata, 4 vel 6 mm. longa; antherae purpu- 

 rascentes, superne flavescentes, vix arcuatae, 3 vel 372 mm. longae, 72 mm. 

 crassae, connectivo infra loculos l l /-i vel 3 mm. longos producto, capillari, 

 valde arcuato. Ovarium ovoideum, superne leviter breviterque glanduloso- 

 pilosum, 1^2 mm. longum; stylus snbcapillaris, purpurascens, plus minusve 

 arcuatus, superne leviter incrassatus, 8 — 10 mm. longus. Capsula calyce 

 plus minusve persistente subvestita , atro-fusca , ovoidea , 4- vel obscure 

 8-sulcata, fere usque ad basin 4-valvis, 4 mm. longa, 272—3 mm. crassa. 

 Semina fulva, leviter cocbleata, basi attenuata et acuta, apice rotundata, 

 obscure foveolata, dorso laevia vel leviter tuberculata, 72 mm. longa, 

 74 mm. crassa. 



Habitat in prov. Minas Geraes: Claussen n. 26, 344 A, 345 A, 

 596, 1026, Sello n. 620 part, 9S5, P. Seguro (Varnhagen) n. 114; e. gr. 

 in locis petrosis prope Caiete : Riedel n. 602 part. ; ad aquas circa S. Jodo 

 del Rey: Pohl n. 620, 1228; ad Lagoa Santa: Warming; ad Congonhas 

 do Campo: Claussen n. 131. — Floret Septembri — Odobri. 



4. MACAIREA ADENOSTEMON DC. caule irregu- 

 lariter di — trichotome ramoso; ramis erecto-patulis, teretiusculis, 

 pilis longiusculis rigidiusculis ferrugineis saepius arete ad- 

 pressis dense vestitis praecipue ad nodos; foliis breviuscule 

 petiolatis, obovato- oblongis vel oblongo-lanceolatis, apice ro- 

 tundatis vel acutiusculis , basi plus minusve attenuatis, mar- 

 gine integerrimis, trinerviis vel subtriplinerviis rarius obscure 

 5-nerviis, supra subsparse vel densiuscule breviterque strigoso- 

 asperrimis, subtus densissime . breviterque villoso • hirtellis 

 glandulosisque ; floribus roseis unguibus albican tibus, breviter 

 pedicellatis, in paniculam magnam multifloram terminalem 

 dispositis; calyce subsparse breviterque piloso et dense glan- 

 duloso piloso , tubo campanulato, segmentis subulatis acutissi- 

 mis, apice in setam breviusculam abeuntibus, tubum sub- 

 aequantibus; petalis anguste obovatis, apice rotundatis; 

 staminibus satis inaequalibus, filamentis inferne glabriusculis 

 superne pilis glanduliferis brevissime hirtellis, connectivo infra 

 loculos breviuscule vel brevissime producto, basi leviter in- 

 crassato postice distincte gibboso; ovario quadriloculari; stylo 

 glabriusculo, staminibus subaequali. 



Macairea adenostemon DC! Prodr. III. 109, 484 et 

 Mem. Melast. 40. tab. VI; Cham, in Linnaea IX. 431; Naud. 

 in Ann. Sc. nat. ser. 3 XIII. 34 et Melast. 99; Triana 

 Melast. 37. tab. II. fig. 27c. 



