ON PLANTS FROM ANNAM. 135 



florescences, of which H. vestita is the principal example ; but this 

 new species is distinct in its delicate habit, very narrow leaves, and 

 persistent stipular cup-like sheaths, the latter producing an appear- 

 ance in the older nodes that has suggested the specific name. The 

 nearest allies are, apparently, the Chinese H. loganioides Benth., and 

 H. Vdchellii Benth., both much coarser plants with large broad leaves. 



Leaves 5-6 cm. x 5-8 mm. ; sheath of stipules about 2 mm. 

 deep, the solitary seta 5-7 mm. long. Primary peduncle not more 

 than 1-5 cm. long. The whole flower is barely 2 mm. in length at 

 maturity. 



104. Oldenlaxdia subtilior Wernham, sp. nov. 



Herba gracillima caulibus tenuissimis parum elongatis con- 

 spicue sub-lente canaliculato-striatis minutissime argenteo-pubescenti- 

 bus, debilibus ascendentibus. Folia filimentosa-subulata necnon 

 subrigida adscendentia opposita arete revoluta glabra breviuscula 

 acuta; stipulae interpetiolares simplices setacea3. Flares 4-meri 

 parvi plerumque solitarii in axillis superioribus oriundi ; pedicelli 

 tenuissimi ebracteolati multo excedentes. Calyx cum ovario glaber 

 dentibus anguste triangularibus acutissimis. Corolla anguste cam- 

 panulata inter minim as. 



Lian Khanh Falls, 3,000 ft. " Pink." 



A delicate little herb, 20-30 cm. high, very sparingly branch- 

 ed, with long internodes, and leaves (2 cm. long at most) and stems 

 extremely slender. The setaceous stipules are as much as 3 mm. in 

 length. Pedicels 1-1-8 cm. Calyx-lobes nearly 2 mm., ovary about 

 1 mm. long. Corolla 3-4 mm. long. 



Allied to 0. Stoeksii from Malabar, but readily distinguished 

 by the small and differently shaped flowers. 



105. Ophiorrhiza Harrisiana Heyne. 



Dran, 3,000-4,000 ft. " White." 



Distrib. India, Malaya. 



106. MlJSSAENDA PUBESCEXS Ait, 



Dalat, 5,000 ft, Lian Khanh Falls, 3,000 ft, 

 " Flowers orange-yellow, foliaceous calyx-segments pale 

 yellow." 



VOL. IV, NO. 3, 1921. 



