356 
THE ALPINE AND SVB-ALPINE VEGETATION 
133. Arenaria densissima Wall. 
Nine:bil 3 15.000 ft., No. 4094. Rare, 
134. Arenaria orbicnlata Royle 
Ningbil, 11,000 ft., No. 4212. Occasional. 
13.5. Arenaria ciliolata Edgew. 
Gaoring, Tosa, NingbiJ, 14—15,000 ft., Nos. 3999, 4037, 4079. 
Frequently tetramerous, with two styles. Style and filaments bluish. 
Sparingly. 
136. Arenaria glandiiligera Edgew. 
Dzalep, Chamnago, 12^15,000 ft., Nos. 3807, 4327. Sparingly, 
137. Arenaria Balfouriana W. W. Smith, sp. nov. 
Locus mihi dubius ; ob glandulas quinque quadratas staminiferas in 
grege Pentadenaria species ponenda sed habitu potius ad Odontostemma 
spectat. Sed styli tres et petala integra. 
Flanta perennis procumbens, laxe caespitosa, radice longa gracili, apice 
incrassata. Caules e'radicis corona 2 — 6 orti, ad 10 cm. longi, debiles, 
prostrati, filiformes, vix nisi apud inflorescentiam ramosi, supra glandu- 
losis albidis capillis pubescentes, in medio nonnunquam -capillis crispatis 
2-lineati, basi glabrescentes, rubescentes, teretes. Folia linearia, 5 — 6 mm. 
longa, 1 mm. lata, apiculata, subflaccida, uninervia. Flores in cymag 
2 — 6 floriferas trichotomas plus minusve re diffusas dispositi. Fedicelli pro- 
planta longi, (1 — 3 cm.) debiles; bracteae foliis similes vix minores. 
Sepala 5, lineari-lanceolata, 2 mm. longa, acuta, vix basi indurata, uniner- 
via, scarioso-marginata. Petala 3 — 4 mm. longa, alba, anguste elliptica, 
apice rotundata, integra. Discus lobatus, in 5 glandulas staminiferas 
quadratas purpureas expansus. Stamina 10, biseriata, subcoerulea. Styli 
3, subcoerulei. Capsula ovoideo-globosa, ut videtur 6 dentibus dehiscens . 
semina immatura pauca, compressa, subauriformia. 
Sikkim In the region of heavy rains, 12 — 14,000 ft., near Changu 
and to the west of Tanka La, by the rocky banks of streams, Nos. 4222, 
4246. The specific name is in honour of Prof. I. B. Balfour of 
Edinburgh University 
138. Arenaria melandryoides Edgew. 
Ningbil, Gaoring, W. of Tanka La, 14 — 15,000 ft.. Nos. 4103, 
4176. Sparingly. 
139. Arenaria Benthami Edgew. A. glanduUsa William®, 
Changu, Uikchu^ Tosa^ 11—14,000 ft., Nos. 3110, ,3718, 3924* 
Common. 
