300 
MERRILL AND MERRITT. 
Calamagrostis filifolia Merr., Deschampsia flexuosa Trin., the last two 
being perhaps the predominant- species in the formation, while much 
reduced specimens of Arundinaria niitalcayamensis Hayata, a dwarfed 
bamboo, are to be noted, especially near the borders of the mossy forest. 
Cyperaceae are represented b y Scirpm pulogensis Merr., Garex ram capil- 
acea Boott, 0. tristachya pocilliformis Kiikenth., and Uncinia rupestris 
Baoul. Other plants 'are Luzula effusa Buch., Sagina procumbens L., 
Smilax pygmaea Merr., Ranunculus philippinensis Merr. & Eolfe, 
Halorrhagis micrantha E. Br., Anaphalis contorta Hook, f., and Gentiana 
luzoriiensis Merr. Below is given a list of all the species collected in 
the summit grass lands, 37 in number, excepting the few mosses, scale 
mosses, and lichens. 
Peranema luzonica Copel.; on ledges. 
Polystichum auriculatum Presl ; on ledges. 
Currania gracilipes Copel. ; on ledges. 
Asplenium stantoni Copel. ; on ledges. 
Plagiogyria nana Copel. ; on ledges. 
Pinus insularis Endl. ; very scattered. 
Miscanthus sinensis Andr. ; abundant. 
Isachne pangerangensis var. halconensis Hack. ; rare. 
Anthoxanthum luzoniense Merr. ; fairly abundant. 
Calamagrostis filifolia Merr. ; very abundant. 
Deschampsia flexuosa Trin. ; abundant. 
Monostachya centrolepidoides Merr. ; rare. 
Arundinaria niitalcayamensis Hayata; abundant locally. 
Scirpus pulogensis Merr. ; abundant. 
Schoenus apogon E. & S. ; rare. 
Schoenus axillaris Poir. ; rare. 
Gahnia javanica Mpritzi; only near the borders of the mossy forest. 
Uncinia rupestris var. capillacea Kiikenth. ; rare. 
Carex rara.subsp. capillacea Boett; rather common. 
Carex tristachya var. pocilliformis Kiikenth. ; rather common. 
Eriocaulon depauperatum Merr. ; in seepage pools, shallow wat^r. 
Luzula effusa Buchenau; only near rock outcroppings. 
Smilax pygmaea Merr. ; abundant locally. ■ 
Chamabainia cuspidata Wight; apparently rare. 
Sagina procumbens Linn. ; apparently rare. 
Eanunculus philippinensis Merr. & Eolfe ; in depressions only. 
Hypericum pulogense Merr. ; abundant locally. 
Viola toppingii Elm. ; in depressions only. 
Halorrhagis micrantha E. Br. ; carpeting the Igorot footpath. ' 
Ehododendron subsessile Eendle; near rock outcro'ppings only. 
Vaccinium villarii Vid. ; near rock outcroppings. 
