Justicia

KEY TO JUSTICIA SECT. MONECHMA GROUP I

IN ANGOLA

1. Annual herbs, inflorescence spikes axillary, sometimes also terminal but those at lower nodes often longest; bracts elliptic or ovate to broadly so........................... 2

1. Perennial herbs, inflorescence spikes or panicles primarily terminal, sometimes also in the upper leaf axils; bracts linear, lanceolate or elliptic............................. 3

2. Bract apex subacute to truncate, markedly recurved, with distinct ‘shoulders’; margin with conspicuous pale long eglandular hairs contrasting with short indumentum of external surface............................. 1. J. bracteata View in CoL

2. Bract apex acute and straight or acuminate and slightly recurved, usually without ‘shoulders’, margins usually with- out markedly longer hairs or if these present then not so conspicuous and also present on external surface.................................... 8. J. monechmoides View in CoL

3. Bracts and bracteoles longer than calyces which are largely hidden; inflorescence spikes not (or not clearly) secund. 4

3. Bracts and bracteoles shorter than or bracteoles subequal in length to calyces which are clearly visible; inflorescence spikes often markedly secund..................... 5

4. Bracts, bracteoles and calyces with a broad and conspicuous pale hyaline margin, this often drying yellowish; leaves narrowly elliptic to lanceolate, 7–14.5 cm long, apex markedly acute; calyx lobes 6–7(–9) mm long......10. J. scabrida View in CoL

4. Bracts, bracteoles and calyces lacking or with only a very narrow hyaline margin; leaves ovate or elliptic, 3–7 cm long, apex obtuse or more rarely acute; calyx lobes 11–19(–21) mm long......................... 11. J. subsessilis View in CoL

5. Indumentum of bracts, bracteoles and calyces eglandular only or largely glabrous, glandular hairs absent....... 6

5. Indumentum of bracts, bracteoles and calyces with mixed glandular and eglandular hairs.................... 9

6. Leaves large, 95–115 by 38–46 mm, elliptic or oblong-elliptic, apex acuminate................... 5. J. laeta View in CoL

6. Leaves smaller, 33–68 by 2–14 mm, linear, lanceolate or obovate, apex acute, obtuse or rounded............. 7

7. Bracts, bracteoles and calyx lobes glabrous except for in- conspicuous ascending hairs along margins; leaves linear to narrowly oblong, up to 8 mm wide, length: width ratio of longest leaves 3–16: 1; capsule essentially glabrous....................................... 7. J. lolioides View in CoL

7. Bracts, bracteoles and calyx lobes pubescent or puberulous; leaves obovate or if lanceolate and length: width ratio over 3: 1 then capsule puberulous..................... 8 8. Leaves obovate with apex rounded or obtuse; length: width ratio 2.5–2.6: 1; indumentum of stems, inflorescence ra- chis and calyces antrorse; calyx lobes ± 6 mm long, corolla ± 14 mm long...................... 4. J. glaucifolia View in CoL

8. Leaves lanceolate with apex acute, length: width ratio 4.5– 6.7: 1; indumentum of stems, inflorescence rachis and calyces spreading/patent; calyx lobes ± 8 mm long; corolla ± 18.5 mm long....................... 3. J. eriniae View in CoL

9. Leaves linear-lanceolate, 2.3–3.2 mm wide, length: width ratio 10–16: 1, primary venation of 5 closely parallel veins............................... 2. J. cubangensis View in CoL

9. Leaves ovate, elliptic or narrowly oblong-elliptic, ≥ 15 mm wide, length: width ratio <5: 1, primary venation either pinnate or campylodromous, the latter with strongly ascending and converging secondary veins and with prominent scalariform tertiary veins....................... 10

10. Leaves narrowly oblong-elliptic, up to 13 by 4.2 cm with base long cuneate-attenuate, primary venation pinnate; corolla 18–20 mm long............ 6. J. sp. aff. laeta View in CoL

10. Leaves ovate, elliptic, or elliptic-lanceolate, up to 5 by 2.3 cm with base cuneate to rounded, primary venation campylodromous; corolla 11–13 mm long.......... 11

11. Leaves elliptic or elliptic-lanceolate; calyces clearly longer than bracteoles, lobes oblong-spathulate, markedly 3-veined, the veins prominent and purple in fresh material; inflorescence spikes at first crowded but proximal flowers becoming more widely spaced........... 9. J. moorei View in CoL

11. Leaves ovate; calyces only slightly longer than bracteoles, lobes linear-lanceolate, only inconspicuously 3-veined, only the lobe apices coloured purple; inflorescences spikes crowded throughout.............. 12. J. virgultorum View in CoL