FERNALD. — NEW SPERMATOPHYTES FROM MEXICO. 61 



IV. DIAGNOSES OF NEW SPERMATOPHYTES FROM 



MEXICO. 



By M. L. Fernald. 



Carex ciliaris Fernald, n. sp., laxe caespitosa, caudice duro ; cul- 

 mis duriusculis 4-5 dm. altis acute triquetris superne ciliatis; foliis 

 quam culmo brevioribus lineari-attenuatis 2.5-3.5 mm. latis, nervis 

 marginibusque ciliatis raarginibus revolutis ; spicis 3-5, terminali cia- 

 vellata subsessili 1-1.5 cm. longa vel omnino mascula vel apice foeminea; 

 squamis masculis lanceolato-attenuatis pallide brunneis ; spicis foemi- 

 niis breviter oblongis 0.6-2 cm. longis 0.5 cm. crassis, superioribus 

 approximatis, inferioribus remotis et a bractea inflorescentiam aequanti 

 vel superanti subtentis ; squamis foemineis anguste ovatis acuminatis 

 media parte viridibus 3-costatis levibus marginibus pallidis ; perigy- 

 niis viridescentibus squamas aequantibus vel superantibus 4 mm. longis 

 ellipsoideo-triquetris, faciebus planis 3-5-nerviis, rostro breviter conico- 

 subulato byalino bidentato. — Oak woods, Lena Station, Hidalgo, Mex- 

 ico, alt. 2530 m., 26 August, 1905, C. G. Pringle, no. 10,039 (type, in 

 hb. Gray). Nearest related, apparently, to C. anistostachys Liebm., 

 which, according to the description, has scabrous culms, the staminate 

 scales red-punctate, and the pistillate scales ciliolate. 



Carex perlonga Fernald, n. sp., culmis 6 dm. altis laevissimis basi 

 a vaginis ferrugineis tectis ; foliis quam culmo plerumque brevioribus 

 4-5 mm. latis valde 1-3-nerviis serrulatis basi ferrugineis ; bracteis in- 

 ferioribus elongatis quam culmo longioribus, superioribus abbreviatis 

 setaceis ; spicis 7 solitariis inferioribus remotis superioribus approxi- 

 matis laxe ascendentibus vel pendulis lineari-cylindricis 5-10 cm. longis 

 3-4 mm. latis apice masculis ; squama mascula oblonga subacuminata 

 fulva medio viridi, foeminea oblongo-lanceolata acuminata albo-fulva 

 medio viridi ; perigynio viridi trigono-fusiformi striato 4 mm. longo, 

 ore obliquo subintegro. — Barranca below Trinidad Iron Works, Hi- 

 dalgo, Mexico, alt. 1585 m., 2 June, 1904, C. G. Pringle, no. 8863 

 (type, in hb. Gray). A species of the Polystachyae, unique in its soli- 

 tary not clustered spikes, thus closely approaching the Debiles. 



Alnus firmifolia Fernald, n sp., arborea vel fruticosa 6-12 m. 

 alta ; ramis ramulisque atrobrunneis glabris cum lenticellis numerosis 

 munitis ; foliis elliptico-oblongis obtuse acuminatis vel apice rotundatis 

 basi angustatis 5-17 cm. longis 2-5.5 cm. latis firmis duriusculisque 

 supra glabris sublucidis subtus pallidis piloso-hispidis in nerviis promi- 

 nentibus ; petiolo crassiusculo glabro 0.7-1.2 cm. longo; inflorescentiis 



