Mastixia. 



21 



(i. Bracteae minute lanceolatae vel lanceolato-triangulares 

 acutae. 

 I. Sepala triangularia 3 /4 — * mm longa. Paniculae 



subglabrae 1 4. M. Scortechinii. 



II. Sepala e calycis limbo paulum tantum exserta 

 latiuscule triangularia vix 1 / 2 mm longa. 



1. Folia crasse coriacea, bene elliptica usque ob- 

 ovata, 4 — 7-nervia, apice acuta vel breviter 



acuminata 1 5. M. arborea. 



2. Folia tenuiter coriacea, lanceolata, 8 — 1 4-nervia, 



apice longe acuminata 16. M. gracilis. 



Subgen. I. Tetramastixia Wangerin nov. subgen. 



Flores tetrameri. 



1. M. tetrandra G. B. Clarke in Hook. f. Fl. Brit. Ind. II. (1879) 745; Trimen, 



Handb. Fl. Ceyl. II. (1894) 287. — M. lanceolata Baill. in Adans. III. (1862/63) 83. 



— Bursinopetalum tetrandrum Wight mscr. ex G. B. Clarke, 1. c. ; Thwaites, Enum. 



(1864) 42. — Nom. vern. Mahatawara. 



Arbor conspicua, ramulis teretibus 





ochraceo-brunnescentibus densiuscule breviterque puberulis, mox glabratis brunneo-cineras- 

 centibus usque nigrescentibus. Foliorum manifeste alternorum petiolus supra canali- 

 culatus, sparse puberulus vel rarius glabratus, 1 — 1,5, rarius — 2 cm longus; lamina 

 coriacea, in sicco nigro-virescens subtus pallidior, utrinque glaberrima, longe elliptica 

 vel oblonga vel late lanceolata, basi plerumque in petiolum angustata, apice nunc mani- 

 feste acuminata nunc tantum subacuta, ad 1 1 cm longa et 3 — 4 cm lata, costa media 

 nervisque lateralibus primariis arcuatim adscendentibus margine haud conjunctis supra 

 zb immersis subtus prominentibus, nervillis venisque supra vix subtus paulo manifestis. 

 Infloreseentiae terminales vel in axillis summorum foliorum axillares paniculatae dieha- 

 siorum modo ramosae distractae multiflorae dense breviterque pubescentes, bracteis 

 bracteolisque minute triangularibus 2 — 3 mm longis instructae; florum lateralium pedi- 

 celli 3 mm longi; calycis limbus 1,25 mm latus, sepala late ovato-triangularia 0,75 mm 

 metientia; petala 2 — 2,5 mm longa, apice inflexo, nervo medio intus leviter prominulo ; 

 staminum filamenta 1 mm, antherae 0,5 — 0,75 mm longae ; discus 4-gonus; ovarium 

 1 mm longum; Stylus apicem versus paulo attenuatus 1 — 1,25 mm longus subquadran- 

 gulus, stigmate demum leviter bilobo. Drupa longe ellipsoidea 2 — 2,5 cm longa, dia- 

 metro 1 cm metiens. 



Vorderindisches Gebiet: Prov. Ceylon (Thwaites n. 2441). 



Var. Thwaitesii G. B. Clarke, 1. c. ; Trimen, 1. c. — Mihi non visa, foliis 1 — 

 1,75 in. longis, 0,5 — 0,75 in. latis obtusis, panicula petalisque glabris differt. 



2. M. Margarethae Wangerin in Fedde, Rep. nov. spec. IV. (1907) 335. — Arbor 

 ramulis teretibus alutaceo-fuscescentibus novellis appresse pilosis demum glabratis. Foliorum 

 alternorum petiolus supra canaliculatus, glabratus^ 0,75 — 1 cm longus; lamina coriacea, 

 in sicco saturate olivacea subtus pallidior, supra glaberrima subtus secus costam mediam 

 parce breviterque appresse pilosa ceterum glabrata, bene elliptica vel oblonga basi in 

 petiolum angustata apice acuminata acumine rotundato, ad 6,5 cm longa et 2,75 cm 

 lata, costa media nervisque lateralibus primariis arcuatim adscendentibus supra manifeste 

 immersis subtus prominentibus, nervillis supra vix manifestis subtus interdum prominulis. 

 Paniculae defloratae tantum mihi visae pauciflorae distractae subglabrae; flores tetrameri 

 bracteolis minimis instructi; calycis limbus =b 1 / i mm latus integer omnino non vel 

 minutissime 4-dentatus; ovarium 1,7 5 mm longum; Stylus conicus 0,75 mm longus 

 tetragonus 0,75 mm longus, stigmate bilobo. Drupa longa ellipsoidea in sicco nigrescens 

 glaberrima, 2,25 — 2,5 cm longa, 0,75 cm diametro metiens, apice calycis limbo et disco 

 coronata. 



West-Sumatra: Prov. Padang, am Meeresstrande (Beccarin. 956). — Herb. Leiden. 



