LXVII. MYRTACEZE. 691 
testa membranacea crustacea ossea v. crasso-carnosa; albumen swpissime 0 v. prope 
hilum parcissimum, rarissime (in semine nobis non viso) copiosum.  Jmbryo rectus in- 
. eurvus cyclieus v. spiralis, nunc crasso-carnosus, cotyledonibus ad extremitatem minorem 
minimis sessilibus v. collo tenui inflexo stipitatis, v. plane nullis, nune radicula longioribus 
foliaceis v. crasso-carnosis, planis contortuplicatis complieatis plano-convexis v. crassissimis, 
liberis v. conferruminatis. 
Arbores frutices v. rarissime suffrutices, vix unquam subscandentes. Folia simplicia, 
integerrima v. rarius obscure crenato-serrata, opposita v. alterna, in tribubus r-11 semper 
glandulis resinosis pellucidisve punctata, nunc parva l-oo-nervia, nune majora penni- 
nervia v. rarissime 3-nervia, in tribu 1v alterna impunctata, Stipule O0 v. rarius parvz fu- 
gacissimseque. — Inflorescentia simplex racemosa v. racemoso-paniculata, rarius cymosa, 
axillaris v. gemmo terminali haud evoluto subterminalis. Braetez ad basin pedunculo- 
rum solitaride v. (foribus inferioribus abortientibus) imbrieatce.  Braeteole sub calyce v. 
in medio pedunculo 2 opposit:e, ssepe fugaces, rarius omnino deticientes., 
Species ad 1800, sed sspe extrieatu diffieillims,, Amerieans ab O. Bergio (in Linnsa, xxvii., 
xxix. xxx. et xxxi, et in Mart. Fl. Bras.), Asiatieze à Blumeo (Mus. Bot. i.), Australienses alizeque 
hortenses ab Hortulanis v. a J. C. Schauero (Myrt. Xeroc. in Nov. Act. Nat. Cur. xix. Suppl. 2 aliis- 
que locis) inordinate multiplieatz et fere 2500 in operibus editis enumerantur, plerzeque regionum 
tropiearum utriusque orbis et Australie incole, in temperatis hemisphserii borealis et in Africa 
extratropiea perpauesm. 
Ordo Melastomaceis Lythrarieisque valde affinis; Myrtacee vers folis punctatis facile distin- 
guuntur, plerzeque insuper a Melastomaceis differunt staminibus indefinitis antheris inappendieulatis, 
etc., a. Lythrarieis calycis zestivatione petalis non plieatis disco staminifero annulato, ete. ; exceptiones 
tamen characteribus omnibus hine inde occurrunt. 
FORMJE ABNORMES, 
Caulis subseandens in sibus paucis Meírosideri. 
Folia impunetata in Lecythideis, 
Stipule adsunt minim: fugacissimsw in speciebus nonnullis Calythricis et hine inde in aliis 
generibus imprimis Lecythidearum. 
Calyeis lobi duplicati in Pleantho, Verticordie speciebus nonnullis et Os^ornia, valvatim fissi in 
Psidio generibusque paueis affinibus et in Lecythideis nonnullis, revera valvati in Na apoleona, Aster- 
antho et, Fatidia, connati et ealyptratim decidui in 4cicalypto, Calyptranthe et forte in speciebus 
paucis Eugenie sect. Syzygii, vix conspicui v. 0 in. Éucalypto speciebusque nonnullis Darwinie ct 
Micromyrti. 
Petala connata et calyptratim decidua in Ewcalypto, Eugenie sect. Syzygio, 0 in Calyptranthis 
sp. oo, in Osbornia et Fatidia, 0 (v. ao in corollam orbieulatam connata ?) in Napoleona et Asterantho. 
Stamina definita in Chamelaucieis pluribus, in Beckeeis paucis et in Fropiera, subdefinita in 
Myrrhinio. 
Antherz insigniter appendieulatee ii in Ferticordiis paucis, apice biporosce in Chamelaucieis pluribus, 
Beckeisque nonnullis. 
Ovarium fere superum in Beckee, Hy pocal; mne, Xanthostemonis, Tristanieque speciebus plu- 
rimis et hine inde in generibus aliis, omnino superum in Fropiera. 
Semina albuminosa in Peijoa, et hine inde albumen parcum observatur imprimis juxta hilum in 
seminibus hippocrepidiformibus Myrtearum nonnullarum. 
CONSPECTUS GENERUM. 
"Yrgribus I. Cbameelauciese. Ovarium l-loeulare. Fructus 1- rarius 2-spermus, indehiscens. 
Frutices swpius ericoidei, foliis parvis. Flores sepius parvi, ad axillas s:epissime solitarii, foliis 
floribus nune caulinis conformibus nune dilatatis bracteczeformibus v. ad involucrum confertis. 
Excepta: Fructus spurie 2-ecoccus in speciebus perpaucis 7ZArypíomenis. Flores ad axillas 2-3-ni 
in Tryptomenis speciebus nonnullis. 
Subtribus 1l. Eucham:elauciez. —Sfamina numero petalorum duplo plura staminodiis totidem 
sepius interjectis v. quadruplo plura absque staminodiis, simplici serie petalis opposita et alterna, 
filamentis basi in annulum brevissime connatis. |Ovula 2-10, placente basilari excentrice v. ovarii 
parieti breviter adnate 2-seriatim affiza. — Embryonis (ubi notus) cotyledones brevissime v. — 
ad T. colli tenuis supra radiculam crassissimam inflezi. 
2x2 
