Osbeckiea.] LXVIII. MELASTOMACEX. 743 
—Frutices hispido-setosi. Folia oblonga, acuta, integerrima, rigida, scabrida, 3-5-nervia. 
Flores ad apices ramulorum 1-3, ampli, purpurei v. violacei. 
Species 3, montium Peruvis et Novz Granadie incole. — Bonpl. Rhez. t. 1, 9. 
31. Pleroma, Don in Mem. Wern. Soc. iv. 293. (Lasiandra, DC. Prod. iii. 127.) — Calycis 
paleacei hireuti v. strigosi tubus ovoideus campanulatus urceolatus v. elongatus; lobi 
5, subulati lanceolati v. oblongi, tubo gquilongi v. longiores, persistentes v. decidui. 
Petala 5, obovata, swpe inzquilatera et retusa. Stamina 10, wqualia v. subzqualia, fila- 
mentis glabris pilosis v. glandulosis ; antherm consimiles, lineari-subulatz, arcuate, con- 
nectivo basi breviter v. longius producto antice 2-tuberculato inappendieulato. Ovarium 
liberum v. basin versus costis 5 calyci adhsrens, vertice hispidum v. setosum, 5-loculare ; 
stylus filiformis, curvus, glaber v. pilosus, stigmate punetiformi, Capsula 5-valvis, calyce 
inclusa. Semina cochleata. —Frutices et suffrutices, rarius herbz, interdum scandentes, 
ssmpius strigoso-pilosi v. hispidi. Folia sepius anipla, coriacea, petiolata, ovata v. oblonga. 
integerrima, 3-7-nervia. Flores sepissime in panieulas terminales 3-chotome ramosas 
dispositi, ampli, violacei v. purpurei, interdum bracteis coneavis involuerati, rarissime 4-. 
meri. 
Species ad 124, Americse australis tropicre precipue Brasilim incole. LAsrANDRA et CHTOGAS- 
TRJE species : ZVaud. /. c. xiii. 126 ef xiv. 197. — Bot. Mag. 1. 3766. Mart. Nov. Gen. el. Sp. t. 240, 
242, 243, 245... PLEROMATIS sp., Bof. Mag. f. 4007, 4262. M krasTOuATIS sp., Bot. Reg. t. 644, 671. 
Bot. Mag. t. 2387, 2680. RukxrE sp. Bonpl. Rhez.1.80,51,52. Bot. Beg.t. 323, 664. — Ruiz et 
Pav. FI. Per. 1.321. 
DrrrosrEGi1UM, Don in Mem. Wern. Soc. iv. 296, includit species Pleromatis, bracteis in caly ptram 
duplicem eüeullatam conflatis, calycisque lobis deciduis. 
'FrpovcnurNa, Aubl. Pl. Gui. i; 446. t. 177, est species Pleromatis (Lasiandra Tibouchina, Naud.). 
OREOCOSMUS, laud. l. c. xiii. 37, e£ xii. £. 14, nullo char&ctere a. Pleromate differt. 
.MQcRANTHELLA, Naud. l. c, xiii. 347, differt tantum floribus minoribus. — Bonpl. Rher. t. 19, 21. 
Vent. Choiz PI. t. 34 (Meriania). M. Candollei, Naud., a congeneribus differt antheris brevibus. 
 HxrnrzsrIONIA, Naud. l. c. xiii. 36, includit species paucas monticolas fruticosas sepe depressas, 
rigidas, paleaceo-setosas. Honpl. Rhex. t. 26. Griseb Fi. Brit. W. Tud. 266 (Chatogastre sect. 
Hephastionia). 
82. Pritzschia, Cham. in Linnea, ix. 397.—Calycis glaberrimi tubus hemispharicus ; 
lobi 4, subulati, tubo :quilongi, persistentes. Petala 4, oblonga v. obovata. Stamina 8, 
sequalia, rarius inzequalia; antherz conformes, oblongo-lineares, apice l-porossm, majorum 
conneetivo basi breviter v. brevissime produeto antice 2-tubereulato, minorum connee- 
tivo brevius producto. . Ovarium fere liberum, glabrum, obtusum, 4-loculare ; stylus 
filiformis, declinatus, stigmate punetiformi. Capsula 4-valvis. Seminá cochleata, creber- 
rime foveolata, hilo lato basilari.—Süffrutices glabri, parvuli, ramosi, rigiduli, sieci nigres- 
centes, habitu Serpylli. Folia parva, coriacea, integerrima v. dentata, interdum im- 
presso-punctata, ores terminales, solitarii, pedunculati, purpurei, nigrescentes. 
Species 3, Brasilise medise et australis incole. — Naud. L. c, xii. 278. 
33. Brachyotum, Tana, gen. nov. (Arthrostemmatis sect. Brachyotum, DC. Prod. iii. 
134.) —Calyeis pubescentis hirti v. strigosi tubus hemisphrerieus v. ovoideus ; lobi 4-5, late 
oblongi v. subulati, tubo :quilongi v. longiores, persistentes. Petala 4-5, obovato-rotun- 
data, in corollam campanulatam convoluta. Stamina 8 v. 10, :equalia, filamentis glabris ; 
anthere conformes, subrectz, lineari-oblongs v. subulate, connectivo basi non elongato 
simplici v. antice 2-tuberculato v. 2-calearato. Ovarium liberum, 4-65-loculare, vertice seto- 
sum ; stylus validus, filiformis, stigmate punctiformi. Capsula calycis tubo equilonga. Se- 
mina cochleata.—Frutices rigidi, scabridi v. hispidi, rarius glabrati. Folia inter minora, 
rigide chartacea, scpius ovata v. oblonga, marginibus reeurvis. Flores 1-3 versus apices 
ramulorum, cernui v. nutantes, majuseuli, tubuloso-campanulati, lutei v. purpurei. — — 
Species ad 24, montium Peruviz, Bolivie et Novm Granadsm incolw. Naud. l.c. xiv. 127. t. 4 
(Chetogastra, exolusa sect. Lasiandrella speciebusque floribus erectis). — Boupl. Rhez. t. 6, 8, 13, 
14,920. Ruiz et Pav, Fl: Per. t. 918, 319, 321 ( Ehezia). 
