A NEW GENUS OF ACANTHACEA. 13 
8. Н. leptoneura, Stapf. 
Syn. Ptyssiglottis leptoneura, Hall. f. т Nov. Act. Acad. Nat. Cur. 
vol. Ixx. (1898) p. 222, tab. 12. fig. 2. 
West Borneo: near the Kapuas River, Teysmann, 7918 ; near the Melawi 
River (tributary of the Kapuas), Teysmann, 7923. 
9. H. Motleyi, Stapf (sp. nov.). 
Syn. Dianthera sp., Benth. in Benth. & Hook. f. Gen. Pl. vol. ii. 
p. 1114. 
Herba erecta, isophylla, sicca nigricans. Caulis circiter 18 ст. altus, 
subteres, undique villosulo-puberulus. Folia petiolata, elliptico-lanceolata, 
utrinque acuta vel apice subacuminata, margine interdum subundulata 
5-9 em. longa, 2-3:5 ст. lata, supra glabra, cystolithis sspe inconspicuis 
striolatis, subtus in nervis minute fulvo-furfuraceis, nervis lateralibus utrinque 
4-6 prorsus curvatis ; petiolus fulvo-furfuraceus, 2-4 mm. longus.  /njfores- 
centia axillares vel pseudoterminales, simplices vel bifurcatee, pedunculate, ob 
bracteas dense imbricatas strobiliformes, perpauciflores ; pedunculus ad 7 mm. 
longus; bracteæ ovate vel lanceolatee, acute, 1-2 mm. longs, herbaceæ, 
nigricantes, sparse furfuraceæ ; pedicelli 8—5 lin. longi. Calyx fere ad basin 
5-partitus, ad 7 mm. longus, nigricans, furfuraceo-puberulus ; segmenta 
subulata, acuta. Corolla 7-10 mm. longa, extus papillosa ; tubus 4-6 mm. 
longus ; labium superum late ovatum, emarginatum ; labium inferum supero 
vix longius, fere ad medium 3-lobum, lobo intermedio rotundato lateralibus 
multo angustioribus. — Staminum еса :equales, ineequaliter affixæ, basi 
obtuse, 1 mm. longs. Pollen 50 ш longus, 35 р latus, plicis accessoriis 
utrinque singulis, exinio tenuissime punctato. Ovarium minute papillosum 
vel glabrum (?). | Capsula juvenilis appresse minute papillosa. 
LABUAN : near Sanjong Kubong, in deep shade, not uncommon, Motley, 
128 ! ; near Sungei Tragan, on damp, shady banks, Barber, 273 ! 
Sarawak: Baram District, by the Entoyout River, near Claudetown, 
Hose, 460 1 
10. Н. Beccarii, Stapf (sp. nov.). 
Herba erecta vel basi prostrata, ob folium alterum uniuscuiusque paris 
minutum mucroniforme vel subulatum deciduum specie alternifolia, sicca 
fusco-viridis. Caulis subteres, in lineis binis e commissuris decurrentibus 
minutissime sparseque furfuraceus. Folia normalia petiolata, elliptica vel 
oblongo-elliptica, utrinque acuminata vel basi subacuta, interdum obliqua, 
magnitudine varia, ad 15 em. longa, ad 6:5 em. lata, integra, subundulata vel 
crenulata, supra glaberrima, subtus sparse adpresse papilloso-pubescentia, 
cystolithis inconspicuis, nervis lateralibus utrinque 5-7 valde prorsus curvatis ; 
petioli inferiores ad 1 em. longi, superiores multo breviores vel fere nulli, 
