650 Flora of the Malayan Peninsula. 



To Aporuellia may be referred Ruellia flagelliformis, Hemsley ; R. trichotoma, 

 Nees ; R. acaulis, B. Brown ; R. spicifloni, Benth. ; R. aiiatralis, R. Brown ; JR. Gupiyyi, 

 Hemsley ; and several other South-east Asian unnamed plants. Whereas all the 

 Hindostan species of Ruellia have honeycombed pollen, the species of Apornellia come 

 from Malaya, South China, and Australia. 



1. Apoeuellia sumateensis, C. B. Clarke, n. sp. Stem 11 in. 

 high, with few or small leaves except at the base. Lotver leaves : 

 lamina 5 by 1"5 in., entire, sparsely puberulous ; tip obtuse, triangular; 

 base attenuated ; upper surface dotted ; the rhaphides obscure ; petioles 

 up to 1"5 in. long. Flotvers in distant small clusters on long-peduncled 

 spikes. Floral leaves passing into bracts, ovate or obovate, minutely 

 pubescent, very variable in size. Calyx "175 in. long, divided rather more 

 than half-way down ; teeth 5, linear. Corolla -35 in. long ; tube linear. 

 Stamens 4, didynamous ; anthers subsimilar, of two parallel muticous 

 cells ; filaments glabrous; pollen small, globose, 25 /i. in diam., granular. 

 Style hairy, one branch linear, the other nearly wanting. Capsule 

 •6 in. long, seed-bearing from the base ; seeds about 12, ovate, cora- 

 pressed, shaggy, with hygroscopic hairs on the margin. 



SuMATEA : E. Moesie, alt. 600 ft., H. 0. Forbes 2636 ! 

 Vae. ^ Bidleyi, C. B. Clarke. Leaves more obovate than in the 

 type, completely rounded at the top ; foivers pure white (Ridley). 



Selangoe : Batu Caves, Bidley 8213 ; Kwala Lumpor, Curtis 2364. 



2. Apoeuellia axillaeis, C. B. Clarke, n. sp. Branches (seen) 

 1 foot long, undivided ; internodes 2 in. long. Leaves opposite, equal ; 

 blade 3-25 by 1*5 in., ovate-triangular, subobtuse, slightly hispidulous, 

 suddenly attenuate at base ; petiole -25 in. long. Flotvers in clusters of 

 1 to 3 in the axils, supported by oblong bracts "25 to "35 in. long. Sepals 

 5, linear, -2 in. long, pubescent. Corolla -8 in. long, narrowly-funnel- 

 shaped. Stamens 4 ; anther-cells 2, parallel, oblong, obtuse at base ; 

 pollen globose, 45 ju. in diam., papillose, subechinate. Capsule nearly 

 •5 in. long, stalked, with 7 flattened seeds in the clavate head. , 



Malay Peninsula : Songkah, Curtis. 



This plant — in habit, leaves, inflorescence, corolla, capsule — simulates the very 

 common Ruellia prostrata. Lam., var. dejecta ; the pollen is unlike. 



9. Stbnothyesus, C. B. Clarke, n. gen. 



Inflorescence a terminal, peduncled, compound, many-flowered, 

 nearly glabrous, subebracteate-linear panicle (8 to 12 by -75 in.) ; 

 otherwise as Hemicjraphis. 



This genus agrees in character very closely with the Tropical African genera 

 Mellera and Paulo- Wilhebnia, but the habit and hairs are very different. 



