114 



KEY TO THE FAMILIES AND GENERA 



AA. Ovary wholly superior: fr. eapsular or baccate, 



unknown in Saintpaulia. 

 B. Anther-cells distinct and parallel. 



C. Disk with a large posterior gland, other- 

 wise small or wanting. 



D. Filaments free among themselves 9. Episcia, 



DD. Filaments connate into a sheath which 

 is split on the posterior side. 



E. Anthers separate 10. AUoplectus. 



EE. Anthers connate cross-like 11. Columnen. 



cc. Disk annular, elevated, almost cup- 

 shaped. 



D. Perfect stamens 2 12. 



DD. Perfect stamens 4 13. 



Agalmyld , 

 Trichos- 



[porum 

 Mitrariu. 



ccc. Disk obsolete 14. 



BB. Anther-cells divaricate or diverging, rarely 



sub-parallel, 

 c. Disk 0. 



D. Anthers free 15. Ramonda. 



DD. Anthers cohering in a tube extending 



beyond the cells 16. Conandron. 



cc. Disk reduced to a posterior gland 17. Codonantfie. 



ccc. Disk a ring (rarely dimidiate in Chirita). 

 E. Lvs. cauline, opposite. 



F. Stamens 4 18. Besleria. 



FF. Stamens 2 19. Chirita. 



EE. Lvs. basal (rarely opposite in Strep- 

 tocarpus). 



F. Stamens 4 20. flaberlsea. 



FF. Stamens 2. [pus. 



Q. Corolla-tube long 21. Streptocar- 



GG. Corolla-tube short 22. Saintpaulia. 



Additional genera described are: Acanthonema, Boea, 

 Corytholoma, Cyrtandra, Klugia, Lysionotus, Rhabdothamnus 

 and Roettlera. 



136. MARTYNIACE^E. 



A. Corolla-tubes swollen above the short base 1. Martynia. 



AA. Corolla-tube very long, slender and cylindrical 



with a bell-shaped throat 2. Craniolaria. 



137. PEDALIACEjE. 



A. Caps, truncate at apex, the angles awned or 



horned 1. Ceratotheca. 



AA. Caps, obtuse or acuminate, unarmed 2. Sesamum. 



GG. Tube long, slender, scarcely 



swollen at apex 1-4. Cham&r- 



[anttiemum. 



DD. Stamens 2: ovules in each cell 2 15. Eranthe- 



cc. Corolla bilabiate or sub-equally 4-cut. [mum. 



D. Ovules in each cell 3 or more 16. Phlogacan- 



DD. Ovules in each cell 2. [thus 



E. Fls. with 2 or 4 bracts longer than 



calyx 17. Pcristrophe. 



EE. Fls. without such bracts. 



F. Stamens 4, anthers all 1-celled. . . . 18. Aphetandra. 

 FF. Stamens 2, anthers 2-celled. 



o. Anther-cells unlike, one larger 

 or affixed higher. (In Jaco- 

 binia cells often subequal.) 

 H. The lower anther cell usually 



spurred 19. Justir>,-i. 



HH. The anther-cells not spurred, 

 sometimes equally mucron- 

 ate at base. 

 i. The corolla with short tube 



and ample lips 20. Adhatoda. 



ii. The corolla-tube usually 



long and narrow 21. Jacobinia. 



GG. Anther-cells equal. 



H. Staminodes at base of fila- 

 ments small. 



i. Corolla-tube swollen above; 

 posterior lip incurved, 

 anterior spreading, 3-cut.22. Graptophyl- 

 ii. Corolla-tube elongated; limb [luin. 



sub-bilabiate, 4-lobed. . . .23. Thyrsaca 1 1 - 

 HH. Staminodes 0. [thus 



i. Veins of Ivs. white or colored.24. Fittonia. 

 ii. Veins of Ivs. green. 



j. Calyx-segms. linear or 



bristle-like 25. Schaueria. 



jj. Calyx small; lobes acute 



or acuminate 26. Aniaacan- 



{tliut. 



The following genera are also treated: Anisotes, Beloperone, 

 Dianthera, Dicliptera. Duvernoia, Dyschoriste, Lepidagathi*, 

 Micranthus, Pseuderanthemum, Ilungia and Warpuria. 



139. GLOBULARIACE^;, or SELAGINACE^E. 



A, Calyx o-cut; the 2 posterior lobes of the corolla 



narrow or connate or deficient 1. Globttlaria. 



AA. Calyx cut down one side; posterior lobes of 



corolla 4 2. He ben- 



[streitia. 



138. ACANTHACE^. 



A. Corolla expanded into a single obovate lip. 

 B. Calyx of normal texture; posterior segms. 



3-5-nerved 1. Blepharis. 



BB. Calyx usually cartilaginous; posterior segm. 



3-5-nerved 2. Acanthus. 



AA. Corolla with subequal limb, or 2-lipped. 

 B. The corolla contorted. 



c. Ovary with 2 collateral ovules in each 



cell, or by abortion 1 3. Thunbergia. 



cc. Ovary with 2 to many ovules in each cell, 

 in 1 series or alternately placed one 

 above another. 

 D. Filaments connate in pairs at the base. 



E. Caps, subterete 4. RueUia. 



EE. Caps, compressed parallel to the 



septum 5. Dxdalacan- 



DD. Filaments equidistant or subconnate [thus. 



at the base in pairs; calyx-lobes 



obtuse 6. Sanchezia. 



DDD. Filaments crowded or connate at the 

 base on the posterior wall of the tube 

 or 2 posterior filaments affixed a 

 little higher. 



E. Calyx ample, membranous or colored. 7. Whit fit I- 1 in. 

 EE. Calyx-segms. linear, not colored. 



F. Ovules 2 in each cell 8. Strobi- 



[bnttht'S. 



FF. Ovules 3 to many in each cell 9. Hemigrn- 



BB. The corolla not contorted. [phis. 



c. Corolla of 5 flat lobes, not bilabiate. 

 D. Stamens 4. 



E. The corolla-lobes variously imbri- 

 cated, lateral ones usually outer. 



F. Anthers all 2-celled 10. Barter ia. 



FF. Anthers ail 1-celled 11. Crossati'lrn. 



EE. The anterior corolla-lobe outside, 

 posterior one inside. 



F. Anthers all 1-celled 12. Stenan- 



FF. Anthers all 2-celled (in Chamseran- [drium. 



themum, the posterior anthers 

 sometimes 1-celled). 

 G. Tube swollen into a long or 



broad throat 13. Asystasia. 



140. PHRYMACEiE. 



The only genus Phryma. 



141. MYOPORACE^E. 



Corolla more or less bell-shaped, rarely funnel- 

 shaped, with a subregular limb; ovary 2- or 

 more-celled; cells 1-ovuled, rarely 2-celled and 

 2-ovuled Myoporum. 



142. VERBENACE^;. 



A. Infl. centripetal. 

 B. Fls. sessile in the spike. 



c. Nutlets 2, or by abortion 1, 1-seeded. 



D. Fr. a juicy berry 1. Lantana 



DD. Fr. drupaceous: calyx 2-4-cut or 



-toothed 2. Lippia. 



DDD. Fr. dry: calyx 5-toothed 3. Stachytar- 



cc. Nutlets or cells of fr. 4, or by abortion [phetn 



fewer, 1-seeded 4. Verbena. 



BB. Fls. pedicelled. 

 c. Nutlets 1-seeded. 



D. Number of nutlets 4 5. Amason ia. 



DD. Number of nutlets 2 or 1 6. Petrsea. 



cc. Nutlets 2-seeded, in pyrenes 2-5, 2-lo- 



cellate 7. Duranta. 



AA. Infl. centrifugal. 



B. Fr. drupe-like, entire or 4-lobed, exocarp 

 usually pulpy or fleshy, the emloeiirp en- 

 tire or 4-celled, often separating into 4 

 nutlets. 

 c. Corolla regular; stamens as many as 



petals 8. Callicarpa. 



cc. Corolla-limb oblique, with anterior lobe 

 produced, or sub-bilabiate; stamens 4, 

 diriynamous or arched under posterior 

 lobes. 

 D. Drupe with one 4-celled stone. 



E. Corolla-tube cylindrical, short 9. Vitex. 



