LXIV. RUfelACE^. 748 



Series B. — Ovules 2 in each cell (ovary 2-celled). 



(Genus of uncertain affinity.) 



Corolla-lobes twisted, ovules inserted together half-way up the cell, 1 

 pendulous, 1 erect . . 15. Scyphiphoka. 



Semes 0. — Ovules solitary in each cell. 



SuBSERiBs A. — Radicle superior. 



Tribe VI. Ouettardes. —Corolla-lobes imbricate or valvate in bud. Stamens inserted oti 

 the mouth of the corolla. Fruit drupaceotcs with 3 to mantj free or coheriny pijrenes. Seed 

 cylindric; albumen scanty or none. 



Corolla imbricate. 



Calyx-limb deciduous . . . .... .16. Gdettaeda. 



Calyx-limb persistent . 17. Antieeh.ea. 



Corolla valvate, calyx-limb oupular, ovary 4 to 1 2-celled . . . . 18. Timonius. 



Tribe VII. Knoxiese. -Corolla-lobes valvate in bud. Stamens inserted on mouth of the 

 cA}rolla. Fruit of 2 cocci. Seeds dorsally compressed. 



Albumen copious. Herbs. Fruit very small ... . .19. Kxoxia. 



Tribe VIII. CbioCOCCeae. — Corolla valvate or imbricate. Ntamens inserted at base of 

 corolla. Seeds albuminous. 



Inflorescence axillary. Flowers umbellulate. Anthers dorsifixed. Style- 

 branches 2 to 4 ... . 20. HoDGKissosi.v. 



Tribe IX. VarngruerleSB. — Corolla-lobes valvate in bud. Stamens inserted in the mouth of 

 the corolla. Drupe with 2 to many free or cohering pyrenes. Seeds various, albumen copious. 



Flowers in axillary cymes or clusters. Ovary 2-celled. Stipules equal 21. Canthibm. 



SuBSERiEs B. — Radicle inferior. 



Tribe X. Xzor6s> — Corolla-lobes twisted in bud. Oiiary 2 to i-celled; ovules usually 

 inserted about the middle of the cell, rarely basilar. Fruit n. 2 to i-celled berry or drupe with 2 to 

 ifree or united pyrenes. Seeds usually plano-convex. 



Flowers panicled or corymbose. 



Bracts coriaceous, not sheathing . . . . . .22. Iioea. 



Bracts membranous, lower sheathing . . . 23. Pavetxa. 



Flowers axillary, fascicled or solitary ... .24. Coffea. 



Tribe XI. SKorindeae> — -Corolla-lobes valvate in bud. Stamens inserted in the mouth or 

 throat of the corolla. Ovules usuaUy inserted below the middle of the cell and amphitropous. 

 Fruit a 2 to i-celled berry, or a drupe with 2 to i pyrenes. 



*Calyx-tubes coheriny in a head. 

 Head many-flowered, solitary or umbelled .... . .23. Morinda, 



**Flowers free. 

 Calyi-limb truncate. Drupe with 4 pyrenes. Flov^ers in panicles or umbels 26. CcELospEHMn.\i. 



Tribe XII. PeyChotrleeB. -Corolla-lobes valvate in bud. Stamens'inserted near the mouth 

 of the corolla. Ovules basilar, cuneate, anatropous. Drupe with 2 or more pyrenes. 



'Flowers in terminal, rarely axillary, coryinbose or paiiicled, rarely capitate, cymes. 

 Calyx-limb short, 4 or 5-toothed. Corolla usually short, straight . . . 27. Psychotkia. 



"Flowers capitate or fascicled, axillary or terminal (or solitary in Geophila'. 

 Calyx with 4 to 7 rather long lobes. Creeping herbs. Leaves cordate . . 28. Geophila. 

 Calyx-limb 3 to 6-fid. Style-arms 3 to 9. Leaves distichous . 29. Lasianthus. 



***Flotoers axillary and ternUnnl, solitary or few. Anthem 4, xnbsessile. 

 Calyx-limb truncate. 

 Drupe with 2 pyreaes ; stem tuberous, epiphytes . . .30. Htdxiiphitum. 



Drupe with 3 pyrenes ; stem tuberous, epiphytes . 31. Mykmecodia. 



Tribe Xm. Operculariese; Benth. Fl. Ausli.— (7o;'oHa-Jote valvule. Ovules erect from 

 the base, usually one only to each flower. Style-branches long. Fruit capsular, 2-valved. 

 Albumen copious. — Herbs, undershrubs, or rarely small shrubs. Flowers in simple or compound 

 heads, the calyx-tubes connate. Outer ralcrs of the fruit.-: of each partial head donnate in a 

 persistent cuv ; inner valves of the same fruits connate in a deciduous operculum. 



Flower-heads connate in a compound head, or rarely solitary . . 32. Opekcclahia. 



Flower-heads several in an umbel . . 33. I'oaiAx. 



