23,3 Merrill: Diagnoses of Hainan Plants, II 247 



CLAUSENA MONINGERAE sp. nov. 



Frutex 1.5 m altus vel arbor parva, usque ad 7 m alta, partibus 

 junioribus distincte cinereo-pubescentibus, ramis teretibus, gla- 

 brescentibus ; foliis 10 ad 15 cm longis, petiolis rhachibusque 

 pubescentibus ; foliolis circiter 21, oblongis, valde obliquis, 1.5 

 ad 3 cm longis, 8 ad 11 mm latis, punctatis, utrinque plus 

 minusve pubescentibus, integris, rotundatis ad obtuse acumi- 

 natis, basi perspicue inaequilateralibus, uno latere rotundatis 

 altero multo angustioribus acutis, nervis utrinque circiter 6; 

 paniculis terminalibus, pyramidatis, 12 ad 15 cm longis, ramis 

 inferioribus usque ad 7 cm longis, pubescentibus; floribus 4-me- 

 ris, calycis acute 4-angulatis, 1.2 mm diametro ; petalis ellipticis, 

 rotundatis, 4 mm longis, glabris ; filamentis 2 mm longis, sursum 

 angustatis, antheris ellipsoideis, 1.2 mm longis ; ovario cylindrico, 

 leviter villoso; stylis crassis, cylindraceis, 1.2 mm longis. 



Tai Wan San Hui, Kingchow, and without locality, McClure 

 8803, 8995 (type) , Moninger s. n., April, 1922, and June, 1920, 

 in thickets along roads. Local names: Ka wong pi, tang lung 

 shu, and kai tan wong. 



The specimens were originally referred to Clausena excavata 

 Burm. f., but represent a form rather remote from that species 

 and one distinctly allied to the Formosan C. lunulata Hayata. 

 It is characterized especially by its numerous, small, very oblique 

 leaflets, and its relatively elongated filaments which are nearly 

 twice as long as the anthers. It differs from Hayata's species 

 in its 4-merous flowers, evidently more conspicuous indumentum, 

 and in its fewer leaflets. 



MELIACEAE 



DYSOXYLUM LUKII sp. nov. § Eudysoxylum. 



Arbor 4 ad 5 m alta, perspicue molliter pubescens ; ramulis 

 ultimis circiter 1 cm diametro, dense subferrugineo-pubescenti- 

 bus; foliis alternis, distantibus, circiter 60 cm longis, petiolis 

 rhachibusque dense pubescentibus; foliolis 9 ad 11, plerumque 

 alternis, lanceolatis vel oblongo-lanceolatis, chartaceis, 10 ad 17 

 cm longis, 3 ad 4 cm latis, olivaceis, nitidis, acuminatis, basi 

 perspicue inaequilateralibus, uno latere rotundatis altero acutis, 

 supra, costa dense pubescens excepta, subglabris, subtus molliter 

 villosis ; nervis utrinque circiter 30, perspicuis, patulis, curvatis, 

 ad margine arcuato-anastomosantibus ; paniculis supra-axilla- 

 ribus, quam foliis multo brevioribus, circiter 20 cm longis, ramo- 

 sis, pubescentibus; floribus 4-meris, longe pedicellatis (pedicellis 

 4 mm longis, pubescentibus) ; calycis subpatelliformibus, pubes- 



