660 
WAINIO. 
11. P. Hookeri Tayl. in Hook. Journ. Bot. (1847) 169; Wain. Cat. Welw. 
Afr. PI. Lich. (1901) 400. 
Thallus isidiosus, IvHO superne lutescens, intus lutescens et demum 
rubescens, CaCl 2 0 2 non reagens. P. meiphora Nyl. Lich. Guin. 45, 
thallo majore ab hac specie differt. 
Luzon, prov. Benguet, Baguio, For. Bur. 15626 Curran. Acl truncum Pini 
insularis Endl. Ster. 
12. P. (sect. Sublinearis) americana (Mey. & Flot.) Mont.; Wain. Lie'll. 
Nov. Bar. I, Hechvigia (1899) 122. 
Thallus subtus margine fibrillosus, ceterum glaber, superne isidiosus, 
sorediis destitutus, KHO superne lutescens, intus primum lutescens, dein 
rubescens. 
Luzon, prov. Benguet, Baguio, For. Bur. 15625 Curran. Ad truncum Pint 
insularis Endl.; mons Tonglon, Bur. Sci. 51/81/ Ramos, in rupe. Ster. 
13. P. sorocheila Wain. Lich. Nov. Bar. I, Hedwigia (1899) 123. 
Thallus subtus margine fibrillosus, ceterum subtus glaber, isidiis des- 
titutus, partim in apice et parce etiam in margine laciniarum soraliis 
rotundatis instructus, IvHO superne flavescens, intus primum lutescens, 
dein rubescens. 
Luzon, prov. Lepanto, mons Data, Merrill 491/5, alt. 2100 m s. m. Ad truncos 
Pini insularis Endl. Ster. 
14. P. subdissecta Nyl. FI. (1882) 452; Nyl. & Cromb. in Journ. Bot. (1882) 
51. 
Thallus albidus, adpressus, isidiis minutissimis passim paroe instructus, 
sorediis et ciliis destitutus crebre iteratim dichotome ramosus, laciniis 
sublinearibus, 1-0.3 mm latis, apieibus obtusis aut truncatis retusisve, 
KHO superne lutescens, intus non reagens, CaCl 2 0 2 non reagens, at his 
solutionibus unitis intus rubescens. Apothecia peltata applanataque, 
adpressa, sessilia, disco rufo, nudo, nitido, piano aut leviter concavo, 
margine sat tenui, leviter crenulato, excipulo subtus laevigato, isidiis des- 
tituta. Hymenium 0.035-0.04 mm crassum, praesertim ascis jodo caeru- 
lescentibus. Epithecium testaceo-rufescens. Paraphyses crebre septatae, 
tubulis mediocribus, 0.002-0.0025 mm crassis, apice parum incrassatis, 
membranis parum gelatinogo-incr assati s. Sporae 8-nae, distichae, sim- 
plices, decolores, ellipsoideae, apieibus rotundatis, long. 0.005-0.01, crass. 
0.003-0.0005 mm. P. dissecta Kyi. apotheciis vulgo cupuliformibus, ex- 
cipulo isidioso et sporis majoribus ab hac specie differt. 
Luzon, prov. Benguet, Baguio, For. Bur. 15632 Curran. Ad truncos Pini 
insularis Endl. Fert. 
15. P. (div. Endoxantha) biformis Wain. sp. nov. 
Thallus stramineo-glaueescens aut partim cinereo- aut pallido-glau- 
cescens, medulla flava aut straminea aut partim stramineo-albida, subtus 
nigricans aut ad ambitum anguste aut late pallidus vel castaneus, laciniis 
biformibus, aliis latis, latitudine usque ad 5 mm, sicut in P. tiliacea 
