249 



MEL ASTOMACEAE : MACAIREA. 



250 



4 mm. lata. Staminum filamenta capillaria, purpurascentia, leviter flexuosa, 

 3 vel 3 J /2 mm. longa; antherae purpurascentes, superne flavae, leviter ar- 

 cuatae, 2 1 /* vel 3 mm. longae, 7s mm. crassae, connectivo infra loculos 

 1 vel 2 mm. longos producto, subcapillari , satis arcuato. Ovarium ovoi- 

 deum , usque ad basim brevissime glandnloso-pilosum praecipue ad apicem, 

 IV2 mm. longum ; stylus subcapillaris, sigmoideus, supei'ne vix incrassatus, 

 3 — 4 mm. longus. Capsula calyce persistente subvestita, atro-fusca, ovoi- 

 dea, distincte 4-sulcata, fere usque ad basim 4-valvis, 4 mm. longa, 3 mm. 

 crassa. Semina fulva , leviter cochleata , basi attenuata et acutiuscula, 

 apice rotundata, sublaevia, dorso satis tuberculata, 2 /a mm. longa, 1 /a mm. 

 crassa. 



Habitat in Guiana anglica ad Savannah: Schomburgk n. 452. 



9. MACAIREA RIGIDA Benth. caule trichotome ra- 

 inoso ; ramis erecto-patulis, teretiusculis, densissime et longius- 

 cule villoso-hirtellis ; foliis breviter petiolatis, anguste obovatis 

 vel ovato-oblongis , apice rotundatis, basi subrotundatis vel 

 leviter attenuatis, margine integerrimis et leviter revolutis, 

 trinerviis, supra subsparse breviterque bullato strigosis asper- 

 rimisque, subtus brevissime denseque hirtellis glandulosisque ; 

 floribus roseis, longe pedicellatis , in paniculam mediocrem 

 multifloram terminalem dispositis interdum subcorymbosis ; 

 calyce densiuscule breviterque glanduloso-hirtello, tubo ovoideo- 

 campanulato, segmentis subulatis, acutissimis , apice in setam 

 longiusculam abeuntibus, tubo paulo longioribus ; petalis obovato- 

 oblongis, apice acutis vel acutiusculis; staminibus satis in- 

 aequalibus, fllamentis pilis glandularis sparsisque brevissime 

 hirtellis , connectivo infra loculos lougiuscule vel brevissime 

 producto, basi leviter iucrassato postice gibboso ; ovario tri- 

 loculare stylo leviter glanduloso-hirtello, staminibus vix 

 breviore. 



Macairea rigida Benth.! in Hook. Joum. of Bot. II. 291 ; 

 Walp. Bepert. II. ISO; Triana Melast. 37. tab. II. fig. 28b. 



Caulis erectus, robustus, subrectus, teres, cinereo-fuscus, denudatus, 

 demum excoriatus; rami elongati, leviter arcuati, robustiusculi, simplices, 

 ferruginei demum cinereo-fusei , inferne plus minusve denudati. Petiolus 

 robustus, teretiusculns, densissime et longinscule ferrugineo-sericeus, 

 4 — 8 mm. longus. Folia plana, rigida, patula vel erecto-patula, internodiis 

 subduplo longiora, supra fusca, subtus cinereo-fusca transverse valde ner- 

 vulosa et distincte foveolata, 4 — 7 cm. longa, 2 — 3V2 cm. lata, superiora 

 saepius valde minora; nervis supra satis impressis, subtus valde prominen- 

 tibus et longiuscule denseque appresso-hirtellis, mediano robnsto, lateralibus 

 graciliusculis. Panicula saepius compacta, inferne saepius foliosa, circiter 

 V2 dm. longa. Bracteae tenuiter membranaceae, sessiles, lanceolatae vel 

 subulatae, basi leviter attenuatae, apice longe setaceae, pallide virides, 

 margine longe ciliatae, supra glabriusculae , subtus longiuscule denseque 

 hirtellae, 4 — 8 mm. longae, x /a — l 1 /* rnm. latae. Pedicellt filiformes, 

 subrecti, subsparse breviterque glanduloso-hirtelli, 8 — 12 mm. longi. Calyx 

 sordide cinereus, tubo distincte 8-costato, basi acutiusculo, apice non vel 

 leviter constricto, 2V« — 3 mm. longo et fere totidem lato, segmentis pa- 

 tulis vel reflexis, 3— 3 7* mm. longis, basi remotiusculis vix l ft mm. latis. 

 Petala patula, leviter asymmetrica, margine brevissime sparseque glan- 

 duloso-ciliata, utrinque sub lente minutissime punctato-papillosa, non vel 

 obscure nervulosa, inferne leviter attenuata, 7 — 8 mm. longa, 3 — 4 mm. 

 lata. Staminum filamenta capillaria, pallida, inferne subrecta, apice leviter 

 arcuata, 4 vel 6 mm. longa; antherae purpurascentes, apice flavescentes, 

 leviter arcuatae, 27« vel 3 mm. longae, vix 7* mm. crassae, connectivo 

 infra loculos 7« vel 17* mm. longos producto, subcapillari, vix arcuato. 

 Ovarium ovoideum, inferne subglabrum, superne breviter denseque glan- 

 duloso-pilosum praecipue ad apicem, 17» mm. longum; stylus filiformis, 

 leviter arcuatus, apice attenuatus, 7 mm. longus. Capsula calyce per- 

 sistente subvestita, fusca, ovoidea, apice leviter attenuata, tenuiter tri- 

 sulcata, obscure triquetra, usque ad medium trivalvis, 372 — 4 mm. longa, 

 27*— 3 mm. crassa. Semina fulva, leviter cochleata, basi attenuata et ob- 



tusiuscula, apice rotundata, laevia, dorso non tuberculata, 2 /s — 3 /* mm. 

 longa, 7s mm. crassa. 



Habitat in prov. Chara: Gardner n. 1015 in herb. Deless. ; in 

 Guiana anglica: Schomburgk n. 1015 in herb. Kew. 



10. MACAIREA PARVIFOLIA Benth. caule irregu- 

 lariter dichotome ramosissimo; ramis erectis vel erecto-patulis, 

 teretiusculis, junioribus brevissime denseque glanduloso-hirtellis 

 scabrisque, vetustioribus glabratis vel saepius excoriatis ; foliis 

 parvis, longe petiolatis, oblongis, apice rotundatis vel sub- 

 rotundatis, basi longiuscule attenuatis, margine integerrimis, 

 trinerviis, supra subsparse breviterque bullato-strigosis asper- 

 rimisque, subtus brevissime denseque tomentellis glandulosis- 

 que; floribus roseis, longiuscule pedicellatis, in paniculam 

 parvam multifloram terminalem dispositis; calyce brevissime 

 et densiuscule glanduloso-hirtello, tubo campanulato, segmentis 

 lineari-subulatis, apice obtusis et in setam longiusculam abeun- 

 tibus, tubum aequantibus; petalis anguste obovatis, apice 

 rotundatis; staminibus valde inaequalibus , fllamentis inferne 

 glabriusculis, superne pilis glanduliferis densiusculis brevis- 

 sime hirtellis, connectivo infra loculos longissime vel brevius- 

 cule producto, basi leviter iucrassato postice distincte gib- 

 boso; ovario triloculari; stylo leviter hirtello, staminibus 

 breviore. 



Maca'trea parvifolia Benth.! in Hook. Joum. of Bot. 

 II. 292; Walp. Bepert. II. 130; Naud. in Ann. Sc. nat. 

 ser. 3. XIII. 35 et Melast. 100; Triana Melast. 38. 



Caulis erectus vel adscendens, satis gracilis, teres, flexuosus, sordide 

 cinereus, denudatus, demum longe excoriatus, fere usque ad basim ra- 

 mosus; rami longiusculi, graciles, flexuosi, saepius satis ramulosi, ferru- 

 ginei vel fnscescentes , inferne denudati. Petiolus gracilis, teretiusculus, 

 supra leviter canaliculars, densiuscule breviterque hirtellus, 1 — 17* cm. 

 longus. Folia plana, patula vel interdum reflexa, rigida, internodiis 

 saepius 2 — 3-plo longiora, supra pallide fusca, subtus cinereo-fusca et le- 

 viter foveolata non transverse nervulosa, 27« — 4 cm. longa, 8 — 13 mm. 

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

 nentibus et sparsissime longeque appresso-setulosis, mediano crassiusculo, 

 lateralibus paulo gracilioribus. Pamcula laxiuscula, 3 — 6 cm. longa. 

 Bracteae submembranaceae, anguste oblongae, apice subrotundatae, in- 

 ferne in petiolum longiuscule attenuatae, supra subglabrae, subtns sub- 

 sparse breviterque hirtellae, uninerviae, 2 — 7 mm. longae. Pedicelli 

 filiformes, leviter flexuosi, densiuscule breviterque glanduloso-hirtelli, 

 3 — 8 mm. longi. Calyx sordide fuscus, tubo leviter 8-costato, basi leviter 

 attenuate, apice non constricto, 27« mm. longo, 2 mm. lato, segmentis 

 patulis vel saepius reflexis, leviter flexuosis, 27« — 3 mm. longis, basi 2 /s mm. 

 latis. Petala patula, leviter asymmetrica, utrinque sub lente tenuissime 

 punctato-papillosa, reticulato-multinervia, basi leviter attenuata, 8 — 10 mm. 

 longa, 4 — 6 mm. lata. Staminum filamenta capillaria, purpurascentia, in- 

 ferne subrecta, apice valde arcuata, 4 — 5 vel 6 — 7 mm. longa; antherae 

 purpurascentes, apice flavescentes, subrectae, 2*/2 vel 3 mm. longae, vix 

 l /'i mm. crassae, connectivo infra loculos 3 A vel 3 — 372 mm. longos pro- 

 ducto, capillari, vix arcuato. Ovarium oblongum, apice attenuatum , bre- 

 viuscule denseque glandnloso-pilosum praecipue ad apicem, 17» mm. lon- 

 gum; stylus capillaris, plus minusve flexuosus, apice leviter attenuatus, 

 6—7 mm. longus. Capsula calyce persistente vestita, pallide fusca, ovoidea, 

 apice acutiuscula, leviter trisulca, 3 — 3 ! /2 mm. longa, 272 mm. crassa. 

 Skmina pallide fusca, leviter cochleata, basi attenuata et obtusius- 

 cula, apice rotundata, sublaevia, dorso vix tuberculata, 7* mm. longa, 

 7* mm. lata. 



Habitat in Guiana anglica ad Roraima: Schomburgk n. 168/5, 

 699, 1089 et 1089 B. 



