20 LXXV. EUSTACES. (J. D. Hooker.) 



Calyx-limb elongate 4-lobed, flowers in spikes, testa grooved 53. SCYPHOSTACHYS. 

 Calyx calyculate, limb truncate or 4-5-lobed, flowers fascicled, 

 rarely cymose 54. DIPLOSPORA. 



SERIES B. Ovules 2 in each cell (ovary 2-celled). See also 53. Diplospora^ 

 (Genera of uncertain affinity.) 



Corolla-lobes twisted, ovules inserted together half-way up 



the cell, 1 pendulous, 1 erect 55. SCYPHIPHOBA. 



Corolla-lobes valvate, ovules erect on the top of an erect 



basilar placenta 56. JACKIA. 



SERIES 0. Ovules solitary in each cell. (See also 3. Cephalanthus, 18 

 Alleeophania, 19. Fergusonia, 20. Hedyotis, 21. Oldenlandia and 41. Webera.} 



SFBSERIES a. Radicle superior. 



TRIBE VII. G-uettardeae. Corolla-lobes imbricate or valvate in bud. 

 Stamens inserted on the mouth of the corolla. Fruit drupaceous with 2-many 

 free or cohering pyrenes. Seeds cylindric ;. albumen scanty or 0. 



Corolla imbricate, calyx-limb deciduous 57. GUETTARDA. 



Corolla imbricate, calyx-limb persistent 58. ANTIRRHOEA. 



Corolla valvate, calyx-limb cupular, ovary 4-1 2-celled . . 59. TIMONIUS. 

 Corolla valvate, calyx 5-toothed, corolla curved 2-lipped, 



ovary 2-celled 60. DICHILANTHE. 



TRIBE VIII. BLnoxieee. Corolla-lobes valvate in bud. Stamens inserted 

 on the mouth of the corolla. Fruit of 2-cocci. Seeds dorsally compressed. 



Albumen copious, herbs, fruit very small 61. KNOXIA. 



TRIBE IX. Alberteae. Corolla-lobes twisted in bud. Stamens inserted 

 in the mouth of the corolla. Ovary 1 -celled with 1-2 pendulous ovules, or 

 2-oo -celled with 1 ovule in each cell. 



Corolla campanulate, style 8-grooved, ovary 1 -celled, 



1-2-ovuled 62. OCTOTROPIS. 



TRIBE X. Vang-uerieae. Corolla-lobes valvate in bud. Stamens inserted 

 in the mouth of the corolla. Drupe with 2-many free or cohering pyrenes. Seeds 

 various ; albumen copious. 



Ovary 2-celled, stipules equal 63. CANTHIUH. 



Ovary 3-o-celled, stipules equal 64. VANGTTERIA. 



Ovary 2-celled, one stipule very large 65. MESOPTERA. 



STJBBERIES /3. Radicle inferior. 



TRIBE XI. Izoreae. Corolla-lobes twisted in bud. Ovary 2-4-celledj 

 ovules usually inserted about the middle of the cell, rarely basilar. Fruit a 

 2-4-celled berry or drupe with 2-4 free or united pyrenes. Seeds usually 

 plano-convex. 



Flowers panicled or corymbose, bracts coriaceous not 



sheathing 66. IXORA. 



Flowers panicled or corymbose, bracts membranous lower 



sheathing 67. PAVETTA. 



Flowers axillary fascicled or solitary 68. COFFEA. 



TRIBE XII. BXorindeae. Corolla-lobes valvate in bud. Stamens inserted 

 in the mouth or throat of the corolla. Ovules usually inserted below the middle 



