xo. 4 



MF.XICAN MOSSES THERTOT 



27 



BRYACEAE (continued) 

 MIELICHHOFERIA SAINT-PIERREI Then, sp. nov. 



Valle de Mexico: Lerma ; leg. Mariiis Saint Pierre {Bro. Auiahle 



1685). 



Paroica, laxiuscula caespitosa, tenella, viridis. Caulis julaceus, 

 2-3 mm. altus, ramis erectis, vix 5 mm. longis. Folia caulina conferta, 

 imbricata, ovato vel oblongo-lanceolata, acuminata, acuta, 0.8-1.2 mm. 

 longa, 0.4-0.5 mm. lata, marginibus parce et anguste reflexis, superne 

 remote dcnticulatis vel sinuolatis, costa basi 30-36 /x crassa, subpcrcur- 



FiG. 16. — Miclichhojcria Saint-Picrrci Ther. i, 2, 3, stem leaves; 4, leaf from 

 an innovation ; 5, median cells ; 6, apical cells ; 7, basal cells ; 8, moist capsule ; 

 9, fragment of peristome and annulus. 



rente, rete membranaceo, cellulis elongate rhomboideis, 60-70 )U,x 12 /i., 

 marginibus angustioribus, basilaribus rectangularibus ; folia ramea 

 angustiora, marginibus erectis. Folia perichaetialia caulinis similia ; 

 pedicellus erectus, 8-12 mm. longus ; capsula inclinata vel subhorizon- 

 talis, symmetrica, oblongo-cylindrica, collo attenuato instructa ; annu- 

 lus latus ; peristomium simplex, membrana basilari subnulla, processus 

 angusti, 10 /j. lati, granulosi baud appendiculati ; sporae sublaeves, 

 12-15 /^ ' operculum convexum, mamillatum. 



LEPTOBRYUM PYRIFORME (L.) Wils. 

 Valle de Mexico: Tlalpam {Bro. Aiiiable 1246 p. p.). 



EPIPTERYGIUM MEXICANUM (Besch.) Broth. 



Valle de Mexico (Bro. Amahle) : Puente de la Venta (1400) 

 Santa Rosa (15 13) ; Desierto (1642). 



