.}fi'f)mlopsis.] xcviii. acantiiace.e (clarke), 57 



9. M. arborescens, 0. B. Clarke. Tree ; bmnches long, straggling 

 {Scoti- Elliot) ; leaf 9 by G in., cordate ovate-lanceolate, sparingly hairy, 

 irregularly coarsely toothed ; petiole 8} in. long. Panicle-branchas 

 (I by 2 in. ; viscid-hairy at the top ; pedicels J in. long ; floral leaves 

 J-lJ in. long, elliptic, entire, obtuse, densely glandular-hairy, some- 

 what coroUoid, brown-scarious. Calyx-segments 1 by y^j in., glandular 

 pubescent. Corolla \\ in. long; segments 5, ovate, subequal, con- 

 torted in bud ; tube in lower half cylindric, hardly inflated. Stamens 

 (with ellipsoid pollen) of the genus. Ovary nearly glabrous, G-ovuled, 

 and style of the genus. Capsule H in. long, stalked, glabrous. 



Uile ]Laiid. British East Africa : Ruwenzovi ; Tom Dist., at Kivata, Scott- 

 Eliiot, 7666 ! 



13. PHYSACANTHUS, Benth. in Benth. et Hook. f. Gen. 

 PI. ii. 1085. 



Calyx long-tubular, 5-angular ; teeth 5, short, triangular-mucronate. 

 Corolla 1-2 in. long; tube linear, only slightly inflated, ^^ in. in diam. 

 close to the top ; lobes 5, obovate, subequal, contorted in bud. Stamens 

 4, subsimilar ; connective at top bifid, one branch bearing a muticous 

 cell, the other a linear shaggy rudiment ; pollen round-ellipsoid, longi- 

 tudinally 8-12-ribbed. Style hairy upwards ; branches 2, short, 

 unequal. Ovary glabrous; ovules about 4 in each cell. Capsule 

 cylindric or oblong-flattened, perfecting probably more than 4 seeds ; 

 yovmg seeds discoid with processes on the margin. — Stems <S-21 in. 

 long, simple, woody, pubescent. Leaves petioled, elliptic, crenate, 

 hairy. Flowers 1-5 in an apparently terminal cluster ; bracteoles 

 very small. 



The examples of G. 3Iann are excellent ; but, in every ripe capsule opened, there 

 is the case of a chrysalis and the seeds are destroyed. The " processes"' on the margins 

 of the young seeds would develop either into tubercles or elastic hairs. 

 Species 2, endemic in Tropical West Africa, 



Calyx oblong, in fruit inflated 1. P. injlatus. 



Calyx in fruit i in. broad, cylindric, scarcely inflated . . 2. P. ajlindricus. 



1. P. inflatus, C. B. Clarke. Stems 1-2 ft. high. Leaves up to 

 (') by '2\ in., hirsute, tip triangular, base narrowed ; petiole ^-1 in. long. 

 Bracteoles i-J in. long, linear. Calyx (young) 1 in. long, subcylindric, 

 laxly hairy, (fruiting) up to TJ by A in., glabrate, base truncate; seg- 

 ments scarcely J in. long. Corolla-tube up to \\ in. long; lobes \ in. 

 long, spreading, mouth of tube shaggy. Style branches oblong, subequal. 

 Capsule 1 in. long, cylindric or oblong (as seen injured by grubs). 

 — Ruellia hatangana, Joh. Braun & K. Schum. in Mittheil. Deutsch. 

 Schutzg. ii. (1889) 17;! Lankzsteria batangana, Lindau in Engl. 

 & Prantl, Pflanzenf. iv. 3B. 311. Jlaselhqffia hucophthalma, Lindr. n 

 Engl. & Prantl, Pflanzenf. iv. 3B. 305, and in Engl. Jahrb. xxiv. 310. 



Upper Guinea. Cameroons : Bipinde, ZenJcer, 987 ! Batanga, Bates, 139 ! 

 Braun, 24 ! 



XiOwer Guinea. Gaboon : Sierra del Crystal, Mann, 1623 ! 



The pollen will not do for Lankesteria, where Lindau formerly allocated this species. 



