Myrtec.] LXVIL MYRTACEX, 718 
4b. Psidium, Linn. Gen. n. 615.—Calycis tubus eampanulatus urceolatus v. pyriformis, 
supra ovarium vix v. plus minus productus; limbi lobi 4—5, ante anthesin breves lati v. in 
alabastro omnino clauso 0, per anthesin scpius usque ad discum valvatim fissi v. varie dis- 
rupti, Petala 4—5, patentia. Stamina ereberrima, disco ssmpius lato co-seriatim imposita, 
libera, filamentis filiformibus; anthere oblongs v. lineares, prope basin affixm, loculis 
parallelis longitudinaliter deli spi bas Ovarium 2-7- vulgo 4-5-loculare ; stylus fili- 
formis, szepe crassiusculus, stigmate peltato v. capitato ; ovula in loculisoo, placents cen- 
trali sepe 2-lamellatee co-seriatim affixa. Bacca globosa ovoidea v. pyriformis, calycis 
limbo coronatus v. nudus. Semina pauca v. plurima, subreniformia, testa dura; embryo 
eurvatus, hippocrepieus v. subcyclicus, radicula longissima, cotyledonibus parvis.—Ar- 
bores frutices v. rarius suffrutices, spe villosi v. tomentosi. Folia opposita, pennivenia. 
Flores majuseuli v. rarius parvi, in pedunculis axillaribus v. lateralibus 1-3, rarius oo, 
cymosi. 
Species enumeratze ultra 100, sed plurimz reducend:, omnes (una excepta Asie tropicze orientalis ?) 
Ameries tropiez et subtropicze incole, una tamen per regiones tropicas utriusque orbis late eulta. 
Berg in Linnea, xxvii. 852 ; xxix. 250; xxx. 703, et in Mart. Fl. Bras. Myrt. 381. t. 41, 41 A, 42. 
St. Hil. Fl. Bras. Mer. t. 196 ad 188. Lamb. in Trans. Me Soc. xi. £. 17. Bot. Mag. t. 1119, 
2501. Bot. Heg. t. 622, 653, 1079. 
Habitus et flores Campomanesie quacum hoc genus facile confusum est ; differt sepius (nec semper) 
calyee juniore elauso per anthesin valvatim disrupto ovulis oo-seriatis et seminibus. Hzc tamen 
in pluribus speeiebus adhue ignota. 
Acca, Berg in Linnea, xxvii. 138, est eerte Psidii species Peruviana perperam a Bergio in spe- 
eies 2 disrupta, altera falso Domingensi dieta. Huassa-huasi et Cuesta, unde plante plurimsee Dom 
beyanz Ruizianzque proveniunt, sunt pagi Peruviani nee Domingenses. 
. CaLyPTRoPsmruM, Berg im Linnea, xxvii. 349, species unica Guatemalensis nobis ignota, ex 
descriptione auetoris à Psidiis calyce irregulariter disrupto donatis haud differre videtur. 
40. Psidiopsis, Berg in Linnea, xxvii. 350.—Calycis tubus campanulatus, supra ova- 
rium vix productus ; limbus basi cyathiformis, lobis 5 foliaceis distinctis coronatus, demum 
usque ad discum valvatim disruptus. Petala 5, patentia, Stamina creberrima, disco lato 
oc-seriatim imposita, libera, filamentis filiformibus; anther» oblongo-lineares, basiix:, 
loculis parallelis longitudinaliter dehiscentibus. Ovarium 5-loculare; stylus fiiformis, 
crassiusculus, stigmate subpeltato ; ovula in loculis oo, placentze centrali oc-seriatim allixa. 
Bacca calyce coronata. Semina. . . .—Arbor glabra. Folia opposita, pennivenia, Flores 
majuseuli, in pedunculis axillaribus solitarii, 2-bracteolati, 
Species 1, Columbiana, hine Psidio hine Calycolpo et habitu et eharacteribus quam maxime 
affinis. 
47. Calycolpus, Berg in Línnea, xxvii. 978.—Calycis tubus late campanulatus, supra 
ovarium haud v. vix productus ; limbi segmenta v. lobi 5, sspius foliacea. Petala 5, 
patentia. Stamina creberrima, disco latiusculo imposita, libera, filamentis filiformibus ; 
anthere oblongo-lineares, basifixe, loculis parallelis longitudinaliter dehiscentibus. Ova- 
rium 4-5- rarissime 3-loeulare ; stylus filiformis, stigmate capitato v. peltato; ovula in 
loculis oo, placentse centrali oc-seriatim affixa. Bacca globosa, calycis limbo coronata. 
Semina oo, subreniformia, testa dura ; embryo curvatus hippocrepieus v. cyclieus, radicula 
longissima, cotyledonibus parvis.—Frutices arboresve ssepius glabrz. Folia opposita, pen- 
nivenia, Flores majusculi, in pedunculis axillaribus solitarii. 
Species enumeratze 8, sed plures unius varietatis videntur, omnes Ameriez tropiez incole. Berg 
in Linnea, xxvii. 878; xxx. 708, et in Mart. Fl. Bras. Myrt. 411. £. 43.—Genus hine Psidio et 
Psidiopsidi, hine Myrti sectioni Ugni valde affine. 
48. Rhodomyrtus, DC. Mem. Myrt. 33 (Sect. v. Gen.).—Calycis tubus turbinatus 
oblongus v. subglobosus, supra ovarium haud v. vix productus; linbi segmenta 4-5, her- 
persistentia. Petala 4-5, patentia. Stamina numerosa, dense oc-seriata, libera, 
filamentis filiformibus; antherze versatiles v. subbasifixee, loculis parallelis longitudinaliter 
