290 



RUMPHIUS'S HERBARIUM AMBOINENSE 



to Philippine material referred to de Candolle's species. Am- 

 boina specimens are desirable in order definitely to determine 

 the true status of the species. 



EVODIA AMBOINENSIS sp. nov. 



Ampacus angustifolia Rumph. Herb. Amb. 2: 188, t. 62. 

 Amboina, Koesoejoesoe sereh, Robinson PI. Rumph. Amb. 251 (type), 

 October 3, 1913, in light woods at an altitude of about 225 meters; hills 

 behind the town of Amboina, in light forests, Robinson PI. Rumph. Amb. 

 252, October 27, 1913, locally known as gendarussa. 



Arbor parva, 8 ad 10 m alta, glabra, vel ramulis junioribus 

 inflorescentiisque plus minusve cinereo-puberulis ; f oliis 3-f oliola- 

 tis, foliolis petiolatis, firme chartaceis ad subcoriaceis, oblongis, 

 usque ad 16 cm longis, acuminatis, basi acutis ad rotundatis, 

 nervis utrinque 10 ad 12, subtus prominentibus ; paniculis axilla- 

 ribus, pyramidatis, usque ad 13 cm longis, ramis patulis, mul- 

 tifloris, floribus circiter 2.5 mm longis, ovario pubescente. 



A tree 8 to 10 m high, nearly glabrous, or the young branchlets 

 and parts of the inflorescence more or less cinereous-puberulent. 

 Branches terete, reddish-brown, often somewhat compressed at 

 the nodes, smooth. Leaves opposite, 3-foliolate, their petioles 

 4 to 7 cm long; leaflets in general oblong, firmly chartaceous to 

 subcoriaceous, 9 to 16 cm long, 4 to 7 cm wide, entire, apex rather 

 prominently acuminate, base acute to rounded, somewhat shining 

 when dry, subolivaceous or somewhat pale, quite glabrous on 

 both surfaces ; lateral nerves 10 to 12 on each side of the midrib, 

 slender but prominent, anastomosing, the reticulations lax; pe- 

 tiolules 3 to 5 mm long. Panicles axillary, pyramidal, slightly 

 puberulent or nearly glabrous, up to 13 cm long, the branches 

 spreading, the lower ones up to 7 cm long. Flowers white, 

 numerous, their pedicels about 2 mm long. Sepals 4, ovate, 

 obtuse, 0.5 mm long. Petals 4, elliptic-ovate, glabrous, slightly 

 apiculate at the apex, 2 to 2.5 mm long; filaments elongated, 

 glabrous; anthers 1.2 mm long. Ovary 4-lobed, pubescent. 

 Fruit small, composed of two or three, nearly free, dehiscent 

 cocci about 3.5 mm in length, the seeds blue-black, shining, about 

 2 mm in diameter. 



Ampacus angustifolius has been confused with Evodia tri- 

 phylla DC. by practically all authors since the publication of 

 the latter species in de Candolle's Prodromus 1 (1824) 724, 

 which in turn was based on Fagara triphylla Lam., Encycl. 2 

 (1788) 447. The type of Fagara triphylla was a Philippine 

 specimen, and it is Melicope triphylla (Lam.) Merr., in Philip. 

 Journ. Sci. 7 (1912) Bot. 375, where the complicated synonymy 



