A834 A FLORA OF MANILA 
seated on upcurved supports (retinacula), ovoid or compressed, testa smooth 
or rugose; albumen none; radicle next to the hilum. 
Genera 204, species about 2,000 in tropical and warm-temperate regions, 
25 genera and about 100 species in the Philippines. 
1. Perfect stamens 2, staminodes or much-reduced imperfect stamens often 
present. 
2. Herbs. 
8; Mowers ‘in axillary clusters: 222 ee ee 1. Dicliptera 
8. Flowers in spikes. 
4. Erect, the spikes on elongated, rigid peduncles............ 2. Elytraria 
4. Prostrate or spreading; spikes sessile.....................:-.--+- 3. Justicia 
2. Shrubs or undershrubs. 
3. Corolla narrowly funnel-shaped....................-2.-20-eeeeeee--e= 4. Barleria 
8. Corolla tubular, salver-shaped, or 2-lipped. 
4. Corolla salver-shaped, subequally 5-lobed or obscurely 2-lipped. 
5. Shrubs -with purple or variegated leaves; corolla lobes with 
scatered, small, purplish spots...................-.:000« 5. Odontonema 
5. Undershrubs with green leaves; lower corolla-lobe with a large 
rept g 11sec] 11 t] Pi lene eed oe item, SoA belead Ee hoe . 6. Pseuderanthemum 
4. Corolla distinctly 2-lipped. 
5. One anther-cell below the other, tailed at the base.... 3. Justicia 
‘5. One anther-cell somewhat below the other, rounded or acute 
at the base, the upper lip of the corolla small and twisted. 
7. Rhinacanthus 
5. Anther cells at an equal or nearly equal height, not tailed; leaves 
brownish-purple or variegated.-....................--. 8. Graptophyllum 
1. Perfect stamens 4, in two pairs. 
2. Seeds not supported by curved bodies. 
3. Vines or shrubs with showy, medium or large flowers; seeds 2 or 4. 
9. Thunbergia 
3. A small erect herb with small flowers and numerous seeds. 
10. Staurogyne 
2. Seeds supported on curved, hard bodies (retinacula). 
8. Upper corolla-lip obsolete, the lower one broad; shrubs with spiny 
| (ae ie OCR S 5 Baek SRE TSEIG MCE T Breage oe ee hae aes 11. Acanthus 
8. Corolla 2-lipped or 5-lobed; herbs with spineless leaves. 
4. Capsule 2- or 4-seeded; flowers in dense, spike-like heads. 
12. Lepidagathis 
4. Capsule with more than 4 seeds. 
5. Flowers axillary, solitary or fascicled. 
6. Capsule oblong to linear, seed-bearing throughout; flowers 
pits (cl (ats BLS Me opty Rens cto dae PRR ee RAE RIPEN 13. Hygrophila 
6. Capsule clavate, base narrowed, seed-bearing above only; 
COD ely Ws on Fo Vic, AUP et RR AGEN DCP 14. Ruellia 
5. Flowers in terminal spikes. 
6. Capsules linear to linear-oblong; leaves usually toothed or 
Pi 316 | 7: IR MRO et 9 OR IR Pk i 15. Hemigraphis 
6. Capsules ovate to orbicular; the bracts large, foliaceous, 
spreading, arranged in 2 ranks; leaves entire.... 16. Blechum 
1. DICLIPTERA Jussieu 
Erect branched herbs. Leaves ovate, entire. Flowers in axillary clus- 
ters, the bracts opposite, unequal, larger than the calyx. Flowers sessile, 
