136 xcviii. ACANTHACE^ (clarke). [Asystosta. 



Xrile ]LaDd. Somaliland : Golis Range, Mr-'i. Lort-PhilUps ! Miss Cole ! Adda 

 Giilln, James <^ Thrupp ! between Jaribule and Harr, Siva, 191! 



Very near tlie preceding species, but larger and with woody branches, 



15. A. ansellioides, C. B. Clarke. Sparingly minutely pubescent. 

 Branches 1 ft. long, weak. Leaves 2 by 1 in., ovate ; petiole J in. 

 long. Spikes axillary, 2 in. long, slender, glabrate, 2-flowered ; flower 

 subsessile ; bracts scarcely y^ in. long. Sepals 5, linear, nearly ^ in. 

 long, minutely, thinly scabrous, hairy. Corolla white, in total length 

 J-§ in. ; tube somewhat inflated from the base. Stamens 4 ; anther- 

 cells 2, oblong, muticous, at equal height. Capsule | in. long, stalked, 

 4-seeded, retrorsely thin hairy ; seeds ^ in. in diam., flattened, trapezoid, 

 tubercular-scabrous, margins thickened, smooth. — A. coromandeliana, 

 Balf. f. in Trans. Roy. Soc. Edin. xxxi. 217, partly. 



XSrile Iiand. British East Africa : Tana River, Thomas, 30 ! 



Inflorescence and habit of Justiciar sect. Ansellia. 



;34. PILETIA, Miq.; Benth. et Hook. f. Gen. PI. ii. 1101. 



Anther-cells not parallel at equal height; inflorescence a very 

 narrow panicle ; otherwise (so far as known) equal to Asystasia. 



Species 2 ; the type species in Java, one in West Africa, 



This genus is only known from Miquel's account, which describes neither the 

 aestivation of the corolla, the pollen, nor the fruit. Lindau refers to this genus the 

 Kamerun species below (of which the fruit is unknown). 



1. P. africana, Lindau in Engl. Jahrh. xx. 41. Bush, 2-4 ft. high. 

 Branches slender, glabrate and with lines of jcrisped pubescence. 

 Leaves up to 7 by l|—2 in., from oblong to elliptic, pinnately nerved, 

 margin entire wavy, base obtuse, tip acuminate, crisped hairy on the 

 midrib above, very minutely hairy on the nerves beneath ; petiole up to 

 I in. long. Panicle 3 by J in., minutely hairy, terminal ; peduncle 

 1 in. long; bracts up to ^ in. long., oblong; lateral panicle-branches 

 i in. long, 1-4-flowered. Calyx scarcely J in. long, divided nearly 

 to the base, pubescent; sepals 5, linear, equal. Corolla-tube J- J in. 

 long, narrow ; lobes \-\ in. long. Stamens 4, didynamous ; filaments 

 glabrous ; anthers all 2-celled, muticous ; those on the longer filaments 

 have cells ellipsoid, one much above the other, the upper ciliate on the 

 slit, those on lower filaments have cells orbicular, divergent, a little 

 distant on the connective; pollen ellipsoid, 3-banded. Pistil glabrous; 

 style shortly bifid ; ovules 2 in each cell ; disc J the height of the ovary. 

 Fruit unknown. — Lindau in Engl, k Prantl, Pflanzenfam. iv. 3 B. 

 335. 



Upper Guinea. Cameroons : Quaqua, Buchholz ! 



XiO-wer Gulnea> Gaboon : Como River, Bates, 495 ! 



