194 The Philippine Journal of Science 



191« 



1. PARASHOREA PLICATA Brandis. 



Luzon: Nueva Ecija, Bulacan, Rizal, Laguna, Tayabas, Camarines 

 Albay, Sorsogon. Polillo. Catanduanes. Masbate. Samar Leyte 

 Cebu. Negros. Panay, Capiz. Biliran. Mindanao: Surigao, Agusan 

 Davao, Zamboanga. 



This is one of the most abundant and widely distributed species in the 

 regions of even rainfall. 



2. PARASHOREA WARBURGII Brandis in Journ. Linn. Soc. Bot. 31 

 (1895) 10, Foxw. in Leafl. Phil. Bot. 6 (1913) 1954, 

 Mindanao: Davao and Agusan. 



7. ISOPTERA Scheffer 

 1. ISOPTERA BORNEENSIS Scheffer. Plate I. 



This species was collected in fruit May 26, 1914, by Ranger Oliveros, in 

 the Zamboanga Peninsula, Mindanao, For. Bur. 23829 and 2S8S9 It was 

 also collected, in the same locality, two months later by Rangers Acuna 

 and Belen For. Bur. 22683. This is the first time that this genus h as been 

 reported from the Philippines. The specimens seem to match very well 

 materia collected in Borneo. The species is also known from the Malay 

 Peninsula and Bangka. y 



8. BALANOCARPUS Beddome 

 This genus ii distinct by reason of its calyx-lobes, which are pointed and 

 shorter than the fruit. The trees of this genus are of large size and have 

 very hard wood which is a fine grade of yacal. Sixteen species are known, 

 mainly m the Malay Peninsula and Borneo. 



Key to the Philippine species of Balanocarpus. 



*' Ca obLon WingS ° nly ab ° Ut ° ne " half ^ l0ng 8S the fFUit; kaVes narr <™ly 

 a . Calyx-wings nearly as long as fruit; leaves lanceolate. 



2. B. brachyptera. 

 1. BALANOCARPUS CAGAYANENSIS sp. nov. Plate II. 



Arbor magna. Foliis chartaceis, oblongis, acuminatis, basi 

 cuneatis, rotundatis admodum leviter inaequilateralibus 7 ad 13 

 cm longis, 2 ad 4 cm latis. Nervis secundariis 10 ad 12, tertiariis 

 approximate, parallel. Calycis segmentis quam fructibus 

 duplo brevionbus. 



A large tree. Leaves oblong, acuminate, faintly cuneate, 

 slightly rounded, or slightly inequilateral at the base, 7 to 13 cm 



irTf Vo 4 Cm WidG ' maFgin Slightly inrolled - Secondary nerves 

 10 to 12 pairs, with occasional intermediate short veins Ter 

 tiary veins approximate, mostly parallel. Domatia in axils of 

 secondary veins. Glabrous above and almost glabrous beneath, 

 occasional scattered hairs. Flower clusters not distinctly unila- 

 teral, black or dark gray. Petals yellowish-brown in dried 

 material about twice as long as sepals. Petals pale-sericeous on 

 the outside, glabrous within. Stamens with filaments expanded 



