433 



MELASTOMACEAE : COMOLIA. 



434 



obtusis vel subacutis, basi rotundatis vel subattenuatis, mar- 

 giue argute denticulatis ciliatisque, 5-nerviis, supra densius- 

 cule breviterque adpresso-pilosis , subtus brevissime denseque 

 villoso-hirtellis; fioribus longiuscule pedicellatis , in ramulis 

 axillaribus brevibus dense foliosis submicrophyllis congestis, 

 thyrsum elongatum mentientibus, violaceis vel purpureo-viola- 

 ceis ; calyce dense breviterque villoso-hirtello, tubo campanu- 

 lato-oblongo, segmentis subulatis, apice acutissimis, tubo aequa- 

 libus vel paulo longioribus; petalis obovato-oblongis , apice 

 saepius rotundatis; staminibus valde inaequalibus , majorum 

 connectivo infra loculos longe producto, minorum brevissime 

 producto, omnium basi postice minute tuberculato antice bre- 

 vissime biappendiculato ; stylo glaberrimo. 



Tabula nostra XCVII1. Fig. 1 (habitus cum analysi). 



Comolia stenodon Triana! Melast. 37. 

 Tetrameris stenodon Naud.! in Ann. Sc. nat. ser. 3. 

 XIV. 126 et Melast. 218. 



Caulis rigidus, subrectus, brevissime denseque villoso-hirtellus, de- 

 mum plus minusve excoriatus, ferrugineus, inferne denudatus et snbsim- 

 plex, superne irregulariter ramosus, 6 — 8 dm. altus; rami robusti, sinipli- 

 ces vel paulo ramulosi. Petiolus robustiusculus, leviter compressus, den- 

 sissime breviterque villoso-hirtellus, leviter areuatus, 5 — 8 mm. longus. 

 Folia plana, rigida, internodiis saepius paulo longiora, late ovata vel 

 interdum suborbicularia , supra intense viridia, subtus viridi-cinerea et 

 transverse distincte reticulato-nervulosa, 1 — 2 cm. longa, I — 1V« cm. lata, 

 superiora saepius minora; nervis gracilibus, supra distincte impressis, sub- 

 tus leviter prominentibus, mediano paulo crassiore. Pedicelli satis gra- 

 ciles, rigidiusculi, densiuscule breviterque birtelli, 6 — 10 mm. longi. Ca- 

 lyx sordide fuscus, tubo obscure 5-costato, basi subacute, superne saepius 

 leviter constricto, 5—6 mm. longo, 2 — 2 1 /* mm. lato, segmentis erecto- 

 patulis, leviter flexuosis, 6 — 7 mm. longis, basi remotis 7* — V» mm. latis. 

 Petala patula, leviter asymmetrica, intus glaberrima, extus sub lente 

 minutissime papillosa, apice interdum subciliata, tenuiter 7 — 9-nervia, in- 

 ferne vix attenuata, 10 — 12 mm. longa, 5 — 6 mm. lata. Staminum fila- 

 menta filiformia vel subfiliformia , leviter flexuosa, 5 — 6 vel 8 — 9 mm. 

 longa; ant her ae purpurascentes, leviter arcuatae vel subrectae, apice levi- 

 ter attenuatae et pallidae, 6 — 7 mm. longae, s /a mm. crassae, connectivo 

 infra loculos IV2 vel 4 — 5 mm. long, producto, subfiliformi, non vel levi- 

 ter arcuato. Ovarium ovoideo-subeylindricum, tenuiter 4-sulcatum, apice 

 subtruncatum et leviter intrusum, 2 mm. longum; stylus subfiliformis, le- 

 viter sigmoideus, superne vix incrassatus, 13 — 14 mm. longus. Capsula 

 calyce persistente vestita, pallide fusca, anguste ovoidea, distincte 4-sul- 

 cata, usque ad medium 4-valvis, 5 — 6 mm. longa, 37* mm. crassa. Se- 

 mina cinerea, valde cochleata, subovoidea, basi acutiuscula, apice rotun- 

 data, distincte foveolata, dorso non costata, Va mm. longa, 7s* mm. crassa. 



Var. p. major Cogn. 



Sue tabula nostra XCVIII. Fig. I. 



Caulis robustissimus, satis ramosus. Petiolus robustus, 6—10 mm. 

 longus. Folia anguste ovata, basi interdum acutiuscula, 3 — 4 cm. longa, 

 17 — 22 mm. lata, superiora multo minora. Flores paulo majores. 



Habitat in prov. Minas Geraes: St-HUaire B l n. 728 et 1209; 

 in silvis prope Ouro Preto: Vauthier n. 56; ad Serra do Galheiro: Sello 

 n. 1755; ad Serra da Lapa: RiedeL — Var. p. in rupibus prope Dia- 

 mantina prov. Minas Geraes: Riedel n. 2608; in arenosis hnmidiuscidis 

 ad Serra da Lapa: Riedel. — Floret Augusto—Dcccmbri. 



16. COMOLIA LATIFOLIA Cogn. fruticulosa, undi- 

 que hirsute- villosa ; caule decumbente, tetragono, robusto, le- 

 viter ramoso ; ramis breviusculis, patulis, longiuscule hirtellis ; 

 foliis patulis, distincte petiolatis, subrotundis, apice acutius- 



culis, basi rotundatis, margine serrulatis et longiuscule cilia- 

 tis, 5-nerviis; floribus solitariis, terminalibus, longiuscule pe- 

 dicellatis; calyce densiuscule longeque villoso-hirsuto , tubo 

 subgloboso, segmentis lineari-subulatis, apice acutissimis, tu- 

 bum subaequantibus ; petalis obovato-suborbicularibus , apice 

 rotundatis; staminibus subaequalibus ; stylo glaberrimo. 



Rhexia latifolia Aubl. PI. Guian. I. 336. tab. 129. fig. 2; 

 Willd. Spec. II. 305. 



Arthrostemma Aubletii DC Prodr. III. 137. 



Tetrameris Aubletii Naud. in Ann. Sc. nat. ser. 3. XIV. 

 127 et Melast. 219. 



Comolia Aubletii Triana, Melast. 37. 



Habitat in pratis arenosis Guianae ad Aroura: Aublet. — Species 

 dubia, mihi non visa. 



^> 17. COMOLIA LANCEAEFLORA Triana: suffruti- 

 cosa, tota pilis glandulosis liispidula; caule erecto vel ad- 

 scendente, obscure tetragono, robustiusculo, trichotome ramo- 

 sissimo; ramis longiusculis, erectis vel erecto-patulis, densius- 

 cule breviterque villoso-hirtellis; foliis patulis, brevissime 

 petiolatis, ovatis vel interdum suborbicularibus, apice obtusius- 

 culis vel acutis, basi rotundatis vel rarius subtruncatis, mar- 

 gine tenuissime serratis ciliatisque, 5-nerviis, supra longius- 

 cule sparseque setulosis, subtus subsparse breviterque hirtel- 

 lis; floribus purpureo-violaceis, breviter pedicellatis, in pani- 

 culam multifloram plus minusve foliosam dispositis; calyce 

 densiuscule breviterque glanduloso-hirtello , tubo oblongo-sub- 

 cylindraceo, segmentis lineari-subulatis, tubo 2 — 3-plo brevio- 

 ribus; petalis oblongis vel obovato-oblongis, apice obtusis vel 

 acutiusculis ; staminibus satis inaequalibus, majorum connec- 

 tivo infra loculos lQnge producto, minorum breviter producto, 

 omnium basi postice non appendiculato antice minutissime 

 bituberculato ; stylo glaberrimo. 



Comolia lanceaefiora Triana! Melast. 37. 



Microlicia lanceaefiora DC! Prodr. Ill 118. 



Rhexia lanceaefiora Mart, et Schr.f Msc. ex DC. I. c. 



Uranthera variabilis |3. lanceaefiora Naud. in Ann. Sc. 

 nat. ser. 3. III. 190. 



Microlicia violacea Mart.! Herb. Fl. Bras. n. Q50 (non 

 DC, nee Cham.). 



Tetrameris violacea Naud. 1. c. XIV. 124: et Melast. 216. 



Marcetia excoriata Miq.! in Linnaea XXII. 538 (non DC). 



Caulis rigidus, subrectus, breviter villoso-hirtellus demum subgla- 

 ber, purpurascens, inferne teretiusculus breviter denudatus et plus minusve 

 excoriatus, saepius fere usque ad basin ramosus, 4 — 8 dm. altus; rami 

 graciles, obtuse tetragoni, subsimplices, virides vel purpurascentes, leviter 

 flexuosi, ad nodos setis densis breviusculis stipuliformibus aucti. Petiolus 

 longiuscule denseque hirtellus, vix 1 mm. longus. Folia membranacea, 

 plana, internodiis ut plurimum paulo longiora, supra laete viridia, subtus 

 pallide viridia et minute reticulato-nervulosa, 1 — 2 cm. longa et fere toti- 

 dem lata, superiora saepius dimidio minora; nervis gracilibus, supra dis- 

 tincte impressis, subtus leviter prominentibus, mediano paulo crassiore. 

 Panicula saepius ramosissima, satis compacta, 1 — 2 dm. longa. PlDICiLLi 

 filiformes, recti, densiuscule villosi, 1 — 4 mm. longi. Calyx sordide fuscus 

 vel violaceus, tubo obscure 10-striato, basi subrotundato , apice non vel 

 vix constricto, 5 — 67* mm. longo, 2 mm. lato, segmentis erecto-patulis, 

 subrectis, 17*— 27* mm. longis, basi remotinsculis 3 /« mm. latis. Petala 

 patula, vix asymmetrica, intus glaberrima, extus sub lente minutissime 



