Adhatoda.] xcviii. acanthace.*: (clauke). 228 



4. A. tristis, Xees in DC. Prod. xi. 404. Herbaceous up to A ft. 

 high ; innovations densely fulvous-hairy. Leaves i) by 4^ in., shortly 

 acuminate, when mature pubescent on the nerves beneath, base tri- 

 angular ; petiole 1-2J in. long. Spikes in the upper axils (I by h in., 

 interrupted at the base, not strobilate ; bracts scarcely ^ in. lonfj, 

 lanceolate ; bracteoles similar, smaller. Sepals 5, J in. long or more, 

 linear. Corolla | in. long, purple. Filaments very hairy ; one antlier- 

 cell much lower than the other ; base acute, hardly mucronate ; pollen 

 ellipsoid, longitudinally banded, with single rows of spots on each side 

 of each stopple. Ovary shaggy ; style hairy. Capsule more than 1 in. 

 long, stalk J in. long; seeds 4. — Benth. in Hook. Niger Fl. 4^i4. 

 Justicia tristisj T. Anders, in Journ. Linn. Soc. vii. 38. 



Upper Guinea. Caraeroons : Bipinde, Zenker, 1043 ! Fernando Pn, Vorjel, 101 I 

 Mann, 165 ! 



5. A. robusta, C. B. Clarke. Shrub 10-15 ft. high, young parts 

 densely rusty-tomentose. Leaves 10by4j in.; nerves 17 pairs; petiole 

 Ij in. long. Thyrsus 9 by 4 in., nearly without floral leaves; flower- 

 spikes 3 by J in. ; bracts in the lower part of a spike distant, \-}i in. 

 long, obovate, shortly acuminate ; bracteoles nearly as the sepals. 

 Sepals \-\ by yV in., oblong, acute, pubescent. Corolla |--J in. long, 

 white. Filaments glabrous ; anther-cells at nearly equal height rounded 

 at the base ; pollen ellipsoid, with 2 longitudinal smooth bands with- 

 out tubercles. Ovary very hairy. Capsule not seen. — Justicia rohusta, 

 T. Anders. MS. 



Upper Guinea. Fernando Po, 3000 ft., Mann, 634 ! 



This fine plant is closely allied in habit and characters to A. Vaslca, Nees, but 

 differs in the loose, not strobilate, spikes and the smaller bracts and fiowers. 



6. A. maculata, C. B. Clarke. Climber, 10-15 ft. high, innova- 

 tions densely and minutely fulvous-hairy. Leaves up to 7 by ;!} in., 

 acute, when mature glabrate, base rounded or triangular ; petiole 

 1-2 in. long. Spikes terminal, 3-4 by f in., interrupted, not strobilate ; 

 bracts J in. long, lanceolate, puberulous. Sepals 5, subequal, ] in. 

 long, and upwards, linear-lanceolate. Corolla 1 in. long, white, purple- 

 spotted. Filaments glabrous ; 2 anther-cells at nearly equal height, 

 rounded at the base; pollen elHpsoid, with 2 stopples, the longitudinal 

 smooth bands having a granular (scarcely i^potted) band on eacli side 

 the stopple. Ovary shaggy. — Justicia maculata, T. Anders, in Journ. 

 Linn. Soc. vii. 38. Duvernoia Bihchholzii, Lindau in Engl. Jahrb. xx. 

 43, and in Engl. & Prantl, Pflanzenfam. iv. 3 B. 339. 



Upper Guinea. Fernando Po, Mann, 202! Cameroons : Quaqua Kiver, 

 Buchholz ! 



Imperfectly known species. 



7. Duvernoia haplostachya, lAndau in Engl. Jahrb. xxiv. 321. 

 Branches hairy. Leaves 4 by 2 in., ovate, narrowed at either end. 

 hairy on the nerves beneath ; petiole J in. long. Spike terminal, 

 simple, shorter than the leaves ; rhachis pubescent ; flowers opposit.> ; 



