Tas 8368, 
PSEUDERANTHEMUM mataccense. 
Malay Peninsula. 
ACANTHACEAE. Tribe JUSTICIEAE. 
PsEUDERANTHEMUM, Radlk.; Lindau in Engl. & Prantl, Nat. Pflanzenfam. 
vol. iv. pars iii. B, p. 320. ; 
Pseuderanthemum malaccense, Lindau, 1.c.: species a P. crenulato, Radlk. 
(Lranthemum crenulatum, Wall. ex Lindl.), quacum olim confusa, corollis 
multo longioribus statim distinguenda, caeterum ramis pilis minutis rigidis 
e basi incrassata sursum curvatis subadpressis, floribus sub anthesi sub- 
aequaliter secundum racemi axem distributis, calycibus brevibus pedicellis 
aequilongis vel inferioribus sublongioribus cognoscenda. 
Frutec 1-1-5 m. altus; rami teretes pilis minutis rigidis e basi incrassata 
sursum curvatis subadpressis scabriduli. Folia lanceolata vel elliptico- 
lanceolata, utrinque attenuata vel apice saepius acuminata, 8-12 em. longa, 
2-5 cm. lata, tenuia, tenuiter scabridula, in costa utrinque minute pilosula, 
nervis lateralibus utrinque circiter 7 obliquis prorsus curvatis; petiolus 
gracilis, 1-2 cm. longus. Inflorescentia simpliciter ramosa, 1-5 cm. longa, 
interdum basi ramulo (raro pluribus) aucta, omnibus partibus indumento 
ramulorum simili induta, floribus numerosis, multis eodem tempore apertis 
primo in verticillos paucifloros approximatos dispo~itis vel oppositis vel 
hincinde sparsis (inferioribus saepe rudimentariis), dispositione sub 
anthesi magis minusve obliterata ita ut ad summam racemum sub- 
aequalem continuum referat; bracteae lanceolatae vel lanceolato-subulatae, 
1-2 mm. longae, patentes; bracteolae bracteis similes nisi pro ratione 
latiores, breviores; pedicelli 1-2 mm. longi, oblique erecti vel e basi 
patente adscendentes. Ca/y« peralte divisus, vix 2 mm. longus, segmentis 
—subulatis. Corolla hypocrateriformis; tubus angustus, subrectus, 2°5-3°5 
em. longus, pallide violaceus, extra parce minute glandulosus; limbus 
pallide violaceus vel albido-violaceus, lobo: antico intermedio rubro- 
punctato, 2 em. vel paulo ultra diametiens, lobis anticis 3 a posticis 
2 altius connatis divergentibus late oblongis, intermedio antico ad 6 mm. 
lato, medio pilis consperso. Antherae breviter ellipticae, filamentis aequi- 
longae, 1 mm. longae, connectivo minute glanduloso. OUvariwm glabrum, 
disco annulari cinctum; stylus inferne sparse pilosiusculus. Capsule 
ignota.—Eranthemum crenulatum, var. angustifolium, Nees in DC. Prodr. 
vol. xi. p. 454. EE. malaccense, C. B. Clarke in Hook. f. Fl. Brit. Ind. vol iv. 
p. 498 et in King & Gamble, Mat. Fl. Mal. Pen. p. 888 (Journ. As. Soe, 
Beng. vol. Ixxiv. pars ii. p. 678) partim. E. graciliflorum, Bedd. in Journ. 
Roy. Hort. Soc. xxxiv. p. 71 quoad syn. H. malaccense; an Nees.—O. Starr. 
The handsome Acanthad which forms the subject of our 
plate has been figured from a plant which flowered in the 
collection at Kew in May, 1910. This plant, which was 
sent by Mr. H. N. Ridley from the Singapore Botanic 
Arnit, 1911. 
