Flora of the Mcdayan Peninsula. 



629 



Corolla distinctly '2-lipped : — 



Spikes continuous or axillary clusters 

 Flowers in 1 -sided axillary open racemes . . 

 Corolla obscurely or scarcely 2-lipped : — 

 Thyrsus terminal, 8 to 12 by 'To in. 

 Spikes terminal or shon-peduncled heads 

 Tribe 2. Strobilanthin.e. Capsule with 4 (or 2) seeds : — 

 Pollen ellipsoid, longitudinally ribbed : — 

 Stamens 4 

 Stamens 2 

 Pollen globose, echinate. Stamens 4 

 Subfamily IV. Acanthoide.^:. Eetinacula present. Corolla with 

 the posticous lip cut away ; anticous lip 3-lobed, the middle 

 lobe bifid . . 



Subfamily V. JusticioidejE. Eetinacula present. Corolla-lobes 

 imbricated in the bud, i. e. one lobe wholly within, one wholly 

 without, the others : — 



Tribe 1. GYirN-osTACHTiN.E. Capsule with more than 4 seeds. 

 Bracts inconspicuous, hardly as long as the small sepals, 

 which rarely attain one-fifth inch in length. Stamens 2 : — 

 Capsule cylindric at base ; seeds in the clavate top 

 Capsule with parallel sides ; seed-bearing from the base : — 

 Corolla-tube cylindric, scarcely inflated :■ — 

 Seeds hygroscopically hairy on the margin 

 Seeds glabrous, stony 

 Corolla-tube much inflated upwards 

 Tribe 2. Asystasiin^. Capsule with 4 seeds. Stamens 4 : — 

 Sepals united at base for at least one-third of their length 

 Sepals nearly free at base : — 



Capsule at base cylindric ; seeds in the upper wider part : — 

 Anther-cells at equal height . . 

 One anther-cell below the other 

 Capsule conic ; the 4 seeds near the base 

 Tribe 3. Baeleeiin^. Capsule 2- to 4-seeded. Stamens 2, 

 fertile. Calyx large, 4-partite to the base. Anther-cells 2, 

 rounded at base. Pollen globose, reticulated. Corolla yellow, 

 1-25 in. long . . 



Tribe 4. Ekanthejiin.?:. Capsule 4- to 2-seeded. Stamens 2. 

 Anther-cells 2, rounded at base. Corolla-tube linear; limb 

 subequally 5 fid, spreading 



Tribe 5. JusTiciiNa;. Capsule 4- to 2-seeded. Corolla dis- 

 tinctly 2-lipped. Stamens 2. Calyx small, subequally deeply 

 lobed. Seeds smooth or tuberculate, but without needle-like 

 hygroscopic hairs : — 



Sect. 1. MoNOTHECiE-E. Anthers 1-celled : — 



Corolla 1'25 in. long, orange-red 

 Sect. 2. TypiC/E. Anthers 2-celled. The flower not ap- 

 pearing as though enclosed between two opposite bracts. 

 Placentse in fruit not rising elastically from the base of the 

 capsule : — 



5. Hygrophila. 



6. Nomaphila. 



9. Stexothyrscs. 

 10. Hemigraphis. 



12. Strobilanthes. 

 11. Endopogon. 



13. acanthopale. 



14. Acanthus. 



16. Phlogacanthus. 



15. Gyhnostachyuii. 



17. Amdrographis. 



18. Cystacanthus. 



20. Phialacanthus. 



19. ASYSTASIA. 



21. FrLETIA. 



22. Lepidagathis. 



23. Baeleria. 



24. Erauthemum. 



25. Clixacan'thus. 



