102 l.i:v !') THE FAMILIES AND GENERA 



AA. Petals valvate. 



B. Pedicels jointed or tin. sessile: evergreen 

 tropical or subtropical trees or shrubs, 

 c. Fls. pedieelleil. 



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



styles usually distinct 4. Polyacias. 



DD. Lvs. digitate or occasionally simple: 



styles 5, distinct 5. Pseudo- 



cc. Fls. sessile; ovary usually 5-celled, rarely [panax. 



1-4- or 6-1 2-celled; endosperm usually 

 ruminate: Ivs. usually simple and lobed, 



rarely digitate G. Oreopanax. 



BB. Pedicels not jointed, 

 c. Lvs. digitate. 



D. Anthers 4-celled; ovary 10-ceHed, styles 



distinct: evergreen 7. Dizygotheca. 



DD. Anthers 2-celled; styles usually con- 

 nate. 

 E. Stipules wanting: Ivs. deciduous: 



ovary 2-5-celled 8. Acantho- 



EE. Stipules developed: Ivs. evergreen: [panax. 



ovary 5- to many-celled 9. Schefflera. 



CC. Lvs. simple, usually lobed. 



D. Fls. 4- or 8-12-merous: Ivs. palmately 



lobed, large. 

 E. Styles, connate into a column: (Is. 



8-12-merous 10. Trevesia. 



EE. Styles distinct, 2: fls. 4-merous: Ivs. 



deciduous 11. Tetrapanax. 



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

 E. With distinct styles. 



F. Shrub, evergreen, unarmed: styles 



5 12. Fatsia. 



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

 EE. With connate styles. [panax. 



F. Habit climbing: endosperm rumi- 

 nate: Ivs. simple, usually lobed, 



evergreen 14. Hedera. 



FF. Habit upright. 



G. Ovary 5-8-celled ; calyx indis- 

 tinctly toothed : Ivs. usually 

 entire, occasionally 2-5-lobed, 



evergreen 15. Gilibertia. 



GO. Ovary 2-celled; calyx with 5 

 short teeth : Ivs. palmately 

 lobed or digitate, deciduous. . . 8. 



Meryta and Tupidanthus are also in cultivation. 



Acantho- 



[panax. 



98. GARRYACE^. 

 The only genus Garrya. 



99. NYSSACE^E. 



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

 5: pistillate and staminate fls. in distinct 



heads with small deciduous bracts 1. Nyssa. 



AA. Ovary 6-10-celled; perianth in staminate 

 fls.; heads consisting of 1 pistillate II. and 

 numerous staminate fls. with 2 or 3 very 

 large white bracts at the base 2. Davidia. 



100. ALANGIACE^E. 



The only genus Alangium. 



101. CORNACE^E. 



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

 valvate ; ovary 2-celfed : Ivs, usually 



opposite 1. Cornua. 



AA. Fls. unisexual. 



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



panicles ; ovary 1-celled 2. Aucuba. 



BB. Lvs. alternate. 



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



the upper surface of the Ivs 3. Helwingia. 



CO. Petals imbricate, 5: fls. in terminal 



racemes or panicles 4. Griselinia. 



102. CAPRIFOLIACE^E. 



A. Corolla rotate or nearly so; limb regular; 

 style short, deeply 2-5-cut. 



B. Lvs. pinnately cut 1. Sambucits. 



BB. Lvs. simple 2. Viburnum, 



AA. Corolla tubular or bell-shaped; limb usually 

 irregular; style long, usually with capitate 

 stigma. 



B. Ovary 2-5-celled; all the cells 1-ovuled: 



herbs with rather small whorled fls 3. Triosteum. 



BB. Ovary 3^4-celled; 1 or 2 cells 1-ovuled, the 



others with numerous ovules. 

 c. Fr. a berry, usutilly 2-scedcd: corolla 

 campanula te or tubular -funnelform, 



nearly regular 4. Symphori- 



cc. Fr. a leathery achene. [carpoa. 

 D. Achene inclosed between large peltate 

 bracts : corolla camp anul ate- funnel- 

 form, 2-lipped: ovary 4-celled 5. Dipelta. 



DD. Achene not inclosed between bracts: 

 ovary 3-celled; corolla nearly or quite 

 regular. 



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

 persistent; corolla tubular or cam- 

 pan ulate-funnelform 6. Abelia. 



EE. Ovary subglobose; sepals 5, lanceo- 

 late deciduous; corolla campanu- 

 late-f unnelf orm : trailing under- 

 shrub with the fls. in pairs on 



slender upright stalks 7. Linnaea. 



BBB. Ovary 2-8-celled, the cells with many 



ovulesorl cell empty. 

 c. Fr. an achene or caps. 



D. Stamens 4: fls. in coalescent pairs 

 inserted at unequal height ; ovary 

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



achene 8. Kolkwitiia. 



DD. Stamens 5: fls. in cymes: fr. a 2-celled 



dehiscent caps 9. Diertilla. 



cc. Fr. a berry. 



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



pairs or whorls; calyx deciduous .... 10. Lonicern. 

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



persistent 11. Leycesteria. 



Alseuosmia is also briefly treated. 



103. RUBIACE.E. 

 /. Summary of Tribes. 



Ignoring exceptions and omitting eight tribes not within the 

 scope of this work. 



A. Number of ovules in each locule o. 

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



nutlike. 

 c. Fls. compacted or confluent into a 



spherical head 1. NAUCLEA TRIBE. 



cc. Fls. not disposed in a spherical 



head. 

 D. Seeds winged or appendaged, 



with endosperm: caps. 2-celled. 2. CINCHONA TRIBE. 

 DD. Seeds not winged. 

 E. Corolla valvate. 



F. The seeds with endosperm: 



caps. 2-celled 3. CONDAMINEA 



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

 hisccnt, 2-berried or cap- 

 sular, 2-4-celled 4. HEDYOTIS TRIBE. 



EE. Corolla imbricate or convo- 

 lute: caps. 2-celled; seeds 



with endosperm 5. RONDELETIA 



BB. Fr. fleshy, bursting irregularly or de- [TRIBE. 



hiscent at apex, or a drupe with 2 

 or more stones, the stones many- 

 seeded. 

 c. Corolla valvate: seeds numerous, 



minute, angled 6. Muss .END A TRIBE. 



cc. Corolla imbricate or convolute: 

 seeds numerous, minute, often 



angled 7. 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. 



D. Corolla strictly convolute 10. ALBERTA TRIBE. 



DD. Corolla valvate 11. VANGUERIA TRIBE. 



BB. Radicles inferior. 



c. Corolla strictly convolute 12. IXORA TRIBE. 



cc. Corolla valvate. 



D, Ovules affixed to septum, rarely 

 basilar, generally amphitro- 



pous: trees and shrubs 13. MORINDA TRIBK. 



DD. Ovules affixed to septum, am- 

 phitropous or anatropous: 



herbs 14. GALIUM THIBE, 



ODD. Ovules basilar, erect, anatro- 



pous. 



E. Stamens inserted * on the 

 . throat of the corolla: fr. 

 indehiscent : style entire 

 or with short branches l.. PftTCKOTRIA THIBE. 



