NEW AN.D EAEE MALAYAN PLANTS. 99 



It seems however, to pass into G. acuminata and had better 

 perhaps be kept as a variety of that species. Besides these 

 lowland plants we have a whole series of specimens from our 

 mountain regions which differ in their more compact habit- 

 more coriaceous leaves, dense cymes and short, thick pedicels. 

 They seem to be mountain forms of oxyphylla and could be 

 classed as sub var. Montana. An allied plant which was ob- 

 tained by Mr. Robinson on Tampin hill, differs 'in having the 

 flowers sessile in small heads, and a truncate corolla. This 

 I propose to separate under the name of G. sessiliflora. 



Gaertnera sessiliflora, n. sp. 



A glabrous shrub. Leaves chartaceous. lanceolate acu- 

 minate, cuspidate, long narrowed at the base, nerves T pairs, 

 slender, elevate beneath P. 5 -5. 5 in. long, 1.10-1.25 in. wide, 

 petiole .1 in. long. Stipules forming a tube with 2 setaceous 

 points .5 in. long. Cymes 3 of about 6-10 sessile flowers in 

 dense heads .2 in. long, peduncle thick. .3 in. long. Bracts at 

 base of peduncle ovate, long— setaceous. Calyx campanulate 

 limb truncate entire .05 in. Corolla .21 inches long, tube 

 cylindric, lobes as long, round, ovate mouth very woolly. Fruit 

 globose 2-seeded .3 in. through. 



Negbi Sevibilax, Tampin Hill {Robinson). 



Gaertnera pedicellata, n. sp. 



Slender shrub. Leaves lanceolate cordate acuminate long, 

 narrowed to base, nerves slender 1-6 pairs 3-3.5 in. long, .5 in. 

 wide, petiole .6 in. long, slender. Stipules .25 in. long, tubu- 

 lar with short setaceous points. Cymes terminal lax spread- 

 ing sessile 1.5 in. long, branches few .5 in. long bearing one to 

 three flowers, pedicels .25 in. long. Calyx wide campanulate 

 .06 in. long, truncate. Corolla P in. long, tube rather stout, 

 lobes elliptic, obtuse .15. 



Selastgob : Gunong Mengkuang Lebar (Robinson). 



This is a slender shrub with a short lax panieled cymes 

 and much longer pedicels than any form of G. oxyphylla and 

 longer petioles. 



PONTEDERIACEAE. 



Monochoria elata, n. sp. 



An aquatic plant 6-S feet tall, stem thick. Leaf petiole 

 21 in. long, blade hastate, linear 1 in. long. .3 in. wide slight- 

 ly narrowed to the tip. Lobes at base linear acuminate blunt 



1 in. long. Sheathing leaf of inflorescence with a sheath 3 

 in. long over 1 in. wide, petiole 6-7 in. long, blade spear-shaped 



2 in. long. .1 in. wide, base slightly broader, cuneate. Raceme 

 many flowered 3.5-5 in. long. Pedicel slender .1 in. long. 



R. A. Soc, Xo. 79. 



