306 RECORDS OF THE BOTANICAL SURVEY OF INDIA. 4 
PorriacEz. 
Hymenostomum obscurissimum Dixon sp. nov. (Plate 1). 
Cespites parvi, perdensi, atrofusci, vix I cm. alti. Caules valde 
conferti, ramosi, densissime foliosi ; folia madida erecto-patentia, sicca 
torquata ; caulina ad 2 mm. longa basi latiore late oblongo-lanceolata 
apice lato, obtuso vel brevissime, minute apiculato ; perconcava, margi- 
nibus superioribus late involutis. Costa validiuscula, 60-80p lata, superne 
parum angustata. Cellulae superiores valde obscure et opace, minute, 
leves ; inferiores raplim majores, perpellucide, partem basilarem totam 
occupantes, infime juxtacostales breviter anguste rectangulares, reliquee 
omnes subquadrate vel brevissime rectangulares, seriebus longitudinalibus 
regulariter disposite, parietibus firmis, haud incrassatis. Folia ramea 
multo minora, angustiora. 
Seta brevis, circa 3 mm. alta; theca deoperculata parva, ovata, 
equalis, gymnostoma. 
Hab. Valley of Kunkar R., alt. 3,000—6,500 ft., Hazara Distr., 
N.-W. Front. Prov., July, 1924 (1000). 
With something of the habit of H. tortile this is at once distinct in 
the broader, shorter leaves, very obtuse, with very marked areolation, 
the basal part, reaching nearly half the length of the leaf, being extremely 
pellucid, of small cells, almost equal throughout the base, while the 
upper ones become abruptly small, obscure and very opaque, forming a 
great contrast with the lower. 
* 
Hymenostylium aurantiacum Mitt. 
Valleys of Thak and Baner tributaties, Chilas ; 4,000—13,000 ft. 
(1077). Upper Indus and Astor Valleys, Gilgit, 4,000—8,000 ft. (1102 ; 
1104). 
Trichostomam Lilliei Dixon sp, nov. (Plate I). 
_ E gracillimis generis. Caulis haud 5 mm. altus, laxiuscule foliosus, 
viridis; folia subcomosa, patentia, plus minusve recurvata, fragilia, 
. si¢ca plus minusve crispata ; parva, vix 3 mm. longa, perangusta, -25--35 
mm. lata, e basi brevissima, viz notata, haud dilatata, lineali-lanceolata, 
sensim acuminata, peracuta, vel latiuscule acuta, apice sepe diffracto ; 
marginibus omnino planis, integris ; costa apud basin 60-70 » lata, 
pallida, superne sensim angustata, concolor, plerumque breviter ex- 
currens, dorso superne muriculata. Cellule superiores distincte, chlo- 
rophyllose, seriebus longitudinalibus pulchre disposite, rotundato-hexa- 
gone, circa 8u late, leniter papillose, parietibus tenuibus, basilares 
perpauce, breviter rectangulares, pellucide 
