271 
branaceo, paulo dilatato, breviter 5-lobato, lobis late rotun- 
datis, dorso obsolete denticulatis; petalis obovatis, paulo asym- 
metricis, apice rotundatis, intus glabris, extus vix puberulis; 
staminibus leviter inaequalibus, filamentis glabris, connectivo 
infra loculos paulo produeto, antice minute bituberculato; 
ovario triloculari, apice vix furfuraceo, usque ad medium 
libero. 
Miconia dipsacea Naud.! in Ann. Sc. nat. ser. 3. XVI. 
138 et Melast. 420; Triana, Melast. 112. 
Melastoma amplexicaulis Pav.! Herb. ex Naud. l. c. 
RAMI robusti, elongati, canescenti-cinerei, simplices vel paulo ramu- 
losi. FoLia erecta vel erecto-patula, internodiis 4—5-plo longiora, supra 
pallide viridia, subtus cinereo-fulva, in eodem jugo saepius satis inaequalia, 
11/2—31/2 dm. longa, 5—10 cm. lata, superiora interdum satis minora; 
nervis robustis, supra vix impressis, subtus valde prominentibus, mediano 
multo crassiore, lateralibus margini proximis; nervulis transversalibus 
crassis, satis numerosis, subrectis, supra vix impressis, subtus satis promi- 
nentibus, paulo reticulato-ramulosis, PANICULAE erectae, canescenti-cinereae, 
satis trichotome ramosae, 2—4 dm, longae; rami erecto-patuli, robustiusculi, 
elongati, obscure tetragoni, recti vel leviter areuati. BRACTEAE valde caducae, 
subreflexae, lanceolato-subulatae, concavae, leviter flexuosae, intus glabrae 
et fuscescentes, extus tomentosae et cinereae, !/»—1 cm. longae; bracte- 
olae caducae, patulae, anguste triangulares, 1!/2—2!/» mm. longae. CALYX 
cinereo-fuseus, teretiusculus, basi subrotundatus, 3 mm. longus, superne 
2 mm, latus. PETALA ut videtur alba, erecto-patula demum reflexa, 
enervia, 3 mm. longa, 1/2—2 mm. lata. STAMINUM filamenta tenuissima, 
leviter flexuosa, 3 vel 4 mm. longa; antherae flavescentes, lineares, rectae 
vel paulo arcuatae, 21/2 vel 3 mm. longae, '/2 mm. crassae. OvaRIUM 
ovoideum, apice truncatum, vix 1 mm. longum; stylus filiformis, glaber, 
paulo flexuosus, 5—6 mm. longus, stigmate subpeltato. Bacca nigricans, 
subglobosa, 4 mm, crassa, SEMINA atro-fusca, obovoidea, sub lente levis- 
sime rugulosa, ?/ mm. longa, vix !/s mm. crassa, 
Habitat in Peruvia : Pavon; ad Cuchero Peruviae orientalis : Poeppig 
add. n. 176; in montibus graminosis siccioribus ad Cassapi: Poeppig, 
Mathews n. 1722, Fielding. — 
41. MICONIA IMPETIOLARIS D. Don: ramis tereti- 
usculis, junioribus pedunculisque pilis brevibus crassiusculis 
stellatis dense tomentoso-hirtellis, vetustioribus glabratis laevi- 
busque; foliis magnis, sessilibus, subcoriaceis, oblongis vel 
obovato-oblongis, basi auriculatis et quasi amplexicaulibus, 
apice breviuscule acuteque acuminatis, margine integerrimis 
vel undulato denticulatis, adjecto nervo utroque submarginali 
5-plinerviis sub-S-nerviis, supra primum brevissime et den- 
siuscule stellato-puberulis demum glabris, subtus brevissime 
et densiuscule stellato-hirtellis; paniculis majusculis, termi- 
nalibus, pyramidatis, multifloris, ramis simplicibus vel satis 
ramulosis, ramulis densifloris, spiciformibus; floribus 5-meris, 
sessilibus, ebracteatis vel minutissime bracteolatis, in verti- 
cillastra subglobosa dispositis; calyce dense stellato-furfuraceo, 
: tubo campanulato, limbo membranaceo, non vel vix dilatato, 
brevissime 5-lobato, lobis rotundatis, dorso obsolete gibbosis ; 
petalis obovatis, satis asymmetricis, apice retusis, utrinque 
glabris; staminibus paulo inaequalibus, filamentis glabrius- 
culis, conneetivo infra loculos breviter producto, basi incras- 
sato et antice minute bituberculato; ovario triloculari, glabro, 
usque ad medium libero. 
Miconia impetiolaris D. Don in Mem. Wern. Soc. IV. 
316; DC. Prodr. III. 183; Spach, Vég. Phan. IV. 264; Naud. 
MELASTOMACEAE: 
| 
MICONIA. 272 
in Ann. Sc. nat. ser. 3. XVI. 137 et Melast. 419; Griseb. 
FI. Brit. W.-Ind. Isl. 256 et Cat. Pl. Cub. 98; Triana, Melast. 
112; Hemsl. Biol. Centr.-Amer. Bot. I. 426. 
Melastoma impetiolaris Sw.! FI. Ind. occ. 788; Vahl, 
Ic. tab. 25; Willd. Spec. Pl. II. 591; Pers. Syn. I. 475; 
Rich. in Bonpl. Melast. 64. tab. 29. 
Melastoma macrophylla Desr. in Lam. Encycl. méth. Bot. 
IV. 44 (non Vell.). 
Miconia macrophylla Macf. ex Griseb. l. c. (non Triana 
nec Steud.). 
ARBUSCULA 5—8 m. alta; rami robusti, elongati, erecto-patuli, recti 
vel paulo arcuati, simplices vel paulo ramulosi, ferruginei. FoLta erecta 
vel erecto-patula, internodiis multo longiora, supra siccitate nigricantia et 
nitidula, subtus cinerea vel fuscescentia, in eodem jugo saepius satis in- 
aequalia, 2—5 dm. longa, 7—22 cm. lata, superiora saepius satis minora; 
nervis robustis, supra paulo impressis, subtus valde prominentibus, medi- 
ano multo crassiore, exterioribus submarginalibus caeteris multo gracilio- 
ribus et paulo brevioribus; nervulis transversalibus satis distantibus, sub- 
rectis, robustiusculis, supra vix impressis, subtus valde prominentibus, 
satis ramuloso-reticulatis. PANICULAE erectae, cinereo-fuscae, satis tricho- 
tome ramosae, 1!/»—2!/» dm. longae; rami patuli vel erecto-patuli, satis 
graciles, elongati, acutiuscule tetragoni, subrecti, CaLyx cinereo-fuscus, 
teretiusculus, basi aeutiusculus, 2'/2—3 mm. longus, apice 2 mm. latus. 
PETALA alba, subreflexa, enervia, 2 mm. longa, 1'/» mm. lata. STAMINUM 
filamenta tenuissima, leviter flexuosa, 2!/» —3 mm longa; antherae anguste 
lineares, subrectae, 2 vel 2'/2 mm. longae, '/4 mm. crassae. OvARIUM sub- 
globosum, 1 mm. longum; stylus subeapillaris, subreetus, superne paulo 
incrassatus, 5—6 mm. longus. Bacca coerulea, globosa, saepius obscure 
10-costata, 4 mm. crassa, SEMINA fulva, angulato-pyramidata, laevia et 
nitidula, paulo arcuata, 1'/2 mm. longa, 1 mm. crassa. 
Var. B. PANDURIFOLIA Naud. l. c.; Triana, l. c. 
Folia ad basim dilatata profunde cordata rugosa. 
Var. y. SPRUCEANA Cogn. 
Folia inferne leviter attenuata, basi profundiuscule cordata, apice 
anguste longeque acuminata, subtus viridi-cinerea, pilis brevibus paulo 
ramosis subsparse vestita. 
Habitat in Bolivia: De Castelneau; ad Guayaquil: Duchassaing ; 
secus ripas Orinoci: Bonpland ; in Panama : Seemann n. 393, S. Hayes, 
Duchassaing, Weddell, Cuming n. 1291; in prov. Chiriqui et Veragua : 
Wagener ; in Guatemala:  Friedrichsthal; ad Retalulen et Chojojá: Ber- 
noulli et Cario n. 2879 et 2887 ; in Mexico ad Pital: Liebmann n. 13; 
ad Colipa: Karwinsky n. 233, Liebmann n. 10; in sylvis ad Chiquihuitl 
prope Potrero: Bourgeau n. 2126; in Jamaica: Dancer, Wilson, Marsh 
n. 592, Wullschlaegel n. 832, Macfadyen, Macnab, Purdie, Alexander ; 
in Cuba: Wright n. 1224, in Dominica: Eggers n. 747, Poiteau; in 
Portorico: Wydler, Plée, Sintenis n. 1175, 1565 et 2541; in Guadeloupe : 
Perrottet, L'Herminier; in insula S. Crucis: West; in S. Thomas: 
Bonpland. — Var. 8. in America meridionali prope Guaduas: Bon- 
pland; in Panama: Duchassaing, Fendler n. 29; in Guatemala ad S. 
Juan de Nicaragua: Friedrichsthal n. 526. — Var. y. in prov. Alto 
Amazonas prope S. Gabriel da Cachoeira ad Rio Negro: Spruce n. 2132 
et 2134. 
48. MICONIA AMPLEXICAULIS Nav». ramis tereti- 
usculis, junioribus pedunculisque pilis brevibus crassiusculis 
stellatis plumosisque dense hirtello-tomentosis, vetustioribus 
glabratis laevibusque; foliis majusculis, sessilibus, coriaceis, 
anguste ovatis vel ovato-oblongis, basi profunde cordatis et 
ramum in quo insident amplexantibus, apice subabrupte acute 
longeque acuminatis, margine undulato-subdenticulatis, adjecto 
nervulo utroque submarginali 5-nerviis, supra primum levis- 
sime stellato-puberulis demum glaberrimis laevibusque, subtus 
