KEY T() THE FAMILIES AND GENERA 



99 



E. Ovules pendulous 13. I'imenta. 



EE. Ovules not pendulous. 



F. Embryo thick and fleshy 14. Eugenia, 



FP. Embryo curved, circuhir or spiral. 

 G. The ovary 2-3- rarely 4-loculed: 



ovules in each locule co 15. Myrtus. 



GO. The ovary several-Ioculed by 

 false septa; each ultimate lo- 

 cule 1-ovuIed IG. Hhodomyr- 



[tus. 

 Other genera treated incidentally are: Backhousia, Barring- 

 tonia, Beaufortia, Blepharocalyx, and Kunzea. 



83. LECYTHIDACE.^. 



A. Fr. woody: calyx mostly imbricate. 



B. The fr. large and spherical, not opening. ... 1. Couroupita. 

 BB. The fr. opening by a lid. 



c. Style elongated 2. Bertholletia. 



cc. Style short 3. Lecythis. 



x.K. Fr. fibrous: calyx subvalvate or imbricate. 



B. Petals G-8 A .J aparandiba, 



BB. Petals 4 (rarely 5) 5. Barring- 



AA.\. Fr. fleshy: calyx mostly \*alvate or entire. [toitia. 



B. Ovury 4-loculed 6. Grias. 



BB. Ovary 5-loculed 7. Napoleotia. 



84. MELASTOMACEiE. 

 /. Summary of Tribes. 



Excluding five tribes not represented in this work, and following 

 Cogniaux in D. C. Monog. Phaner. vol. 7 (1891 J. 



A. Fr. capsular (rupturing regularly in 

 Melastoma) : stamens usually un- 

 equal. 

 B. Caps, and ovary 3-5~angled or 

 winged, much dilated and hollowed 

 out at apex. 



c. Ovary-cells as many as petals 1. Sonerila Tribe. 



cc. Ovary 3-loculed: petals 5, rarely 4. 2. Bertolonia 

 BB. Caps, and ovary terete or angular, [Tribe. 

 fonves or conical at the top. 

 c. Connective rarely produced below 

 the locules, usually with poste- 

 rior spur or appendage 3. Rhexia Tribe. 



CO. Connective usually elongated at 

 the base, produced beyond the 

 insertion of the filament into an 

 appendage or wing on the ante- 

 rior side. 

 D. Seeds shaped like a snail-shell. 

 E. Ovary generally partly or 

 wholly inferior: sepals 

 usually alternating with 



long, stellate hairs 4. Osbecki.\ Tribe. 



EE. Ovary genentUy superior; no 



stellate hairs 5. Tibouchixa Tribe. 



DD. Seeds oblong or ovoid S. Microucia Tribe. 



aa. Fr. berry-like or leathery, rupturing 

 irregularly: stamens generally equal. 

 B. Lvs. not finely striate between the 

 primary nerves. 

 c. Connective usually appendaged or 



spurred on the posterior side.. . . 7. Dissoch.'eta 

 CO. Connective rarely produced at the [Tribe. 

 base, usually not appendaged. . . 8. Miconia Tribe. 

 BB. Lvs. finely striate between primary 

 ner\-es with very numerous trans- 

 verse nervelets 9. Blakea Tribe. 



//. Key to the Tribes. 

 1. Sonerila Tribe. 



A. Fls. 5-merous; stamens equal; connective with 



a posterior spur but no anterior appendage... 1. Gravesia. 

 AA. Fls. mostly 3-merous; stamens unequal, those 



opposite petals smaller 2. Sonerila. 



AAA. Fls. mostly 4-merous; stamens equal; con- 

 nective not produced 3. Phyltag- 



[athij, 



2. Bertolonia Tribe. 



A. The connective not appendaged on the an- 

 terior aide. 

 B. Connective tuberculate on the posterior 



side at the base 4. Bertolonia, 



BB. Connective with a short posterior spur and 



a long ascending appendage 5. Salpinga. 



AA. The connective with a spur on the anterior side 



and a tubercle on the posterior side 0. Monolerui. 



3. Rhexia Tribe. 



Stamens equal orsubequal: ovary glabrous 7. Rhexia. 



4. Osbeckia Tribe. 



Stamens unequal; connective of the larger ones 

 long-produced at base: fr. baccate: fia. not 

 involucrate 8. Meiaatoma. 



5. Tibouchina Tribe. 



A. Stamens unequal: ovary 2-4-celled, usually 

 glabrous; petals not acute ; connective of 

 larger stamens with a long, club-shaped, 



2-fid appendage 9. Heeria. 



AA. Stamens equal: ovary setose at apex; connec- 

 tive with 2 lobes or tubercles on the anterior 

 side, and no posterior appendage 10. Tibouchina. 



6. Microlicia Tribe. 



Stamens unequal; anthers short, not beaked; 



calyTt-lobea shorter than tube 11. Centradenia. 



7. Dissochseta Tribe. 



Stamens equal or nearly so; fls. mostly 4-5- 



merous 12. Medinilla. 



8. Miconia Tribe. 

 A. Infl. terminal. 



B. Lvs. provided with 2-lobed bladders at base. 13. Tococa. 

 BB. Lvs. not provided with bladders: outer 



calyx-lobes none or inconspicuous 14. Tamonea. 



AA. Infl. lateral or axillary; petals obtuse; con- 

 nective not produced at base 15. Clidemia. 



9. Blakea Tribe. 



The plants described as Amaraboya are now 



referred to the genus Blakea 16. Blakea. 



Calvoa, Dissotis, Kendrickia, and Osbeckia are also cultivated. 



85. LYTHRACE.ffi. 



A. Hypanthium tubular, curved or gibbous at 



base 1. Cuphea, 



AA. Hypanthium straight. 



B. Caps, and ovary all included in hypanthium. 



c. Petals 5, rarely 4; stamens 8-10 2. Decodon. 



CC. Petals 6; stamens mostly 6 or 12 3. Lylhrum. 



BB. Caps, not all included in hypanthium. 



c. The sepals 4; petals 4; stamens 8 4. Lawsonia. 



CC. The sepals 6; petals (3; stamens numerous. 5. Lagerstra- 



[mia. 



86. PUNICACE^. 



The only genus Punica. 



87. ONAGRACE^. 



A. Ovary 1-4-ceIled: cells 1-ovuled, rarely 2-4- 

 ovuled: fr. nut-like, 1-4-celled, 1-4-seeded. 



B. Fls. 2-merous; ovary 1-2-celled 1. Circaea. 



BB. Fls. 3— 4-merous ; ovary 4-celled, rarely 



3-celled 2. Gaura. 



A A. Ovary 2-6-celled; cells many-ovuled; fr. a 

 caps, (in Fuchsia a berry). 



B. Stamens 1 or 2 3. Lopezia. 



BB. Stamens 4-8, rarely 3. 

 C. Seeds bearded. 



D. Hypanthium broadened out above 



ovary into a funnel-shaped tube. ... 4. Zauschiitria 

 DD. Hypanthium hardly produced beyond 



ovary 5. Epilobium. 



cc. Seeds not bearded or winged. 



D. Hypanthium usually long-produced 

 beyond ovary (except in some (Eno- 

 theras). 



E. Number of stamens 4 6. Eucharid- 



EE. Number of stamens 8. . [ium 



K. Fr. a caps. 7. (Enothera. 



FF. Fr. a berry 8. Fuchsia. 



DD. Hypanthium not or hardly produced 

 beyond ovary. 



E. Caps, loculicidal 9. Clarkia. 



EE. Caps, septicidal. 



F. Stamens 8-12 10. Jusaieua. 



FF. Stamens 3-6 11. Ludwigia. 



88. TRAPACE^. 



The only genu^ 



Tmpa. 



