U»J 



KEY TO THE FAMILIES AND GENERA 



A. Petals valvale. 

 B. P«licel.i jointed or lis. sessile: evergreen 

 tr\niu-»l or subtr(»t)ical trees or shrubs, 

 c. tTs. pe^licelleii. 



D. Lvs. 1-3-pinnste: ovary 1-10-celled; 



styles usually lUstiuci . ■*■ Polyactat. 



DD. L\T>. iligitate or occasionally simple: 



styles o. ilistinct 5. Pseudo- 



cc. Fls. sessile; ovarj- usually r>-celle<l. rarely uwnax. 



i_|. or C-ia-eelled; endosperm usimlly 

 ruminate: lvs. usually simple aud lobed, 



rarely digitate «• »reo,M mx. 



BB. Pedicels not jointed. 



c. Lvs. digitate. „ ,, , , 



D. .\nthers4-oelleil: ovary 10-celled.. styles 



dustinct: evergrwn '• Dizyuulheca. 



DD. .\nthers 2-celled; styles u.sually con- 



E. Stipules wanting: lvs. deciduous: 



ovary 2-5-celled »• Acantho- 



EE. Stipules developed: lvs. evergreen: \pamix. 



ovary 5- to many-celled 9. SchcShra. 



CC. L\"!«. simple, usually lobed. 



D. Fls. 4- or 8-12-mcrous: lvs. palmately 

 lol>ed. large. 

 E. Styles, connate into a column: Ha. 



8-12-merous 10- Trmsm. 



EE. Styles distinct, 2: Ba. 4-merous: lvs. 



deciduous H- redoponaj. 



DD. Fls. 5-merous, rarely .T-8-merous. 

 E. With distinct styles. 



F. Shrub, evergreen, unarmed: styles 



5 12. Falsia. 



FF. Shrub deciduous, prickly: styles 2.. 13. Echino- 

 EE. With connate styles. . \panax. 



r. Habit cUmbing: endosperm rumi- 

 nate: lvs. simple, u-sually lobed, 



evergreen 1-4- Heilem. 



FT. Habit upright. 



o. Ovary 5-8-celled; calyx mdis- 

 tinctly toothed: lvs. usually 

 entire, occasionally 2-5-lobed, 



evergreen l'"'- Oniberlm. 



oa. Ovary 2-celled; calyx with .5 

 short teeth: lvs. palmately 

 lobed or digitate, deciduous. . S. Acanllio- 



\paiuxx. 

 Meryta and Tupidanthus are also in cultivation. 



98. GARRYACE.ffi. 

 The only genus Garrya. 



99. NYSSACEiE. 



A. Ovary 1-celled; calyx minute; petals usually 

 5: pL"tillate and staminate fls. in distinct 



heads with small deciduous bracts 1. Nyam. 



AA. Ovary 6-ll>-celled: perianth in staminate 

 fls.; heads consisting ol 1 pistillate fl. and 

 numerous staminate fls. with 2 or 3 very 

 large white bracts at the ba.se 2. Damlia. 



100. ALANGIACEiE. 

 The only genus Alanoium. 



101. CORKAGE.*;. 



, Fls. bisexual, usually in cymes; petals short, 

 valvate; ovary 2-celfed: lvs. usually 



opposite '• Cornua. 



. Fls. unisexual. 

 B. Lvs. opposite, evergreen: fls. in terminal 



panicles; ovary 1-cclled 2 Aucuba. 



IB. Lvs. alternate. 



c. Petals valvate. 4; fls. in few-fld. cymes on 



the upwir surface of the lvs 3. Helwingm 



CC. Petals imbricate, 5: fls. in terminal , 



racemes or panicles 4- UriselinM. 



102. CAPRIFOLIACE.ffi. 



jl. Corolla rotate or nearly so; limb regular; 

 style short, deeply 2-.'>-cut. 



B. Lvs. pinnately cut !• Sambumt. 



BB. Lv». simple „ 2. Viburnum. 



AA- Corolla tubular or bell-shaped; limb usually 

 irregular; style long, usually with capitate 

 stigma. 



n. Ovary 2-.')-cclle,l; nil tlie cells 1-ovuled: 



iierbs with nitliersiimll whfjrled fls 



BB. Ovary 3-4-celli'd; 1 or 2 cells 1-ovuled, the 

 others with imn.erovis ovules, 

 c. Kr. a berry, usimlly 2-seedcd: corolla 

 campa'Hllnte or tubular -funnellorm, 



nearly regular 4. 



CC. Fr. a leathery nchene. 



D. Aohene inclosed between large peltate 

 bracts: corolla campanulate-funnel- 



f orm, 2-lipped ; ovary 4-celled 5 



DD. Achene not inclosed between bracts: 



ovary 3-cclled ; corolla nearly or quite 



regular. 



E. Ovary narrow; .sepals 2-,5, large, 



per-sistent ; corolla tubular or cam- 



panulate-funnelform *i 



EE. Ovary subglobose ; sepals 5, lanceo- 

 late deciduous; corolla canipanu- 

 late-lunnelform: trailing under- 

 shrub with the fls. in pairs on 



slender upright stalks 



BBB. Ovary 2-S-celled, the cells with many 

 ovulesorl cell empty, 

 c. Fr. an achene or caps. 



D. Stamens 4: fls. in coalescent paira 

 inserted at unequal height; ovary 

 3-celled, often 1 cell empty: fr. an 



achene ; ■■,..■•„" j *' 



DD. Stamens 5: fls. in cymes: fr. a .J-celled 



dehiscent caps 9, 



CC. Fr. a berry. , . , a ■ 

 D. Cells of ovary 2-3, rarely 4-.5: fls. in 

 pairs or whorls; calyx deciduous .... 10 

 DD. Cells of ovary 5-8: fls. in whorls; calyx 

 persistent H 



Alseuosmia is also briefly treated. 



3. Trinsteum. 



Symphori- 

 [atrpos. 



Dipelta. 



Abelia. 



7. Linna-a. 



KolkwUzia. 

 Dienilla. 



Lonicera. 

 . Leycesteria. 



103. RUBIACE.S. 

 /. Summary of Tribes. 



Ignoring exceptions and omitting eight tribes not within the 

 scope of this work. 



A. Number of ovules in each locule <». 

 B. Fr. dry, capsular or 2-5-berned or 

 nuthke. 

 c. Fls. compacted or confluent into a 



spherical head 1- N.vucLE.*. Tribe. 



CC. Fls. not disposed in a spherical 

 head. 

 D. Seeds winged or appendaged, t„,„„ 



withendosperm: caps. 2-celled. 2. Cinchgn.*. Ibibe. 

 DD. Seeds not winged. 

 E. Corolla valvate. 



F. The seeds with endosperm: 



caps. 2-celled 3. Condaminea 



FF. The seeds minute: fr. inde- [Iribe. 



hiscent, 2-berried or cap- 



sular, 2-4-celled 4. Hedyotis Tribe. 



EE. Corolla imbricate or convo- 

 lute: caps. 2-celled; seeds 



with endosperm 5. Rondeleti.^ 



BB. Fr. fleshy, bursting irregularly or de- 1 1 hi be. 



hiscent at apex, or a drupe with 2 

 or more stones, the stones many- 

 seeded. 

 c. Corolla valvate: seeds numerous, 



minute, angled 6. Mtias^NDA Tribe. 



CO. Corolla imbricate or convolute: 

 seeds numerous, minute, often 



angled "• Hamelia Tribe. 



ccc. Corolla strictly convolute: seeds 

 numerous or few, large and com- 



pressed or smaller and angled. ... 8. Gardenia Tribe. 

 AA. Number of ovules in each locule 1. 

 B. Radicles superior. 



c. Stamens inserted at base of corolla; 



corolla valvate or imbricate 9. Chiococca Tribe. 



CC. .Stamens inserted at throat of 



corolla. .... T. 



I), f Corolla strictly convolute 10. Alberta 1 rise. 



ou. ( ;orolla valvate 1 1- V angueria Tribe. 



BB. li.idicles inferior. 



c. Corolla .strictly convolute 12. IxoRA IRIBE. 



CC. Corolla valvate. 



D. Ovules affixed to septum, rarely 

 basilar, generally amphilro- 



pous: trees and shrubs 13. Mohi.sda 1 ribe. 



DD. Ovules affixed to septum, am- 

 phitropoua or anatropous: 



lifrhs. l*- Galium Tribe. 



DDD. Ovules basilar, erect, anatro- 

 pous. 

 E. Stamens inserted on the 

 throat of the corolla: fr. 

 indehi.scent: style entire 

 or with short branches 15. Psychotiiia Tribe. 



