4 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 72 



POTTIACEAE 



? TRICHOSTOMUM sp. 



No. 3444c. A rather distinct, sterile plant, with somewhat sheath- 

 ing, flexuose, suberect, fragile leaves, and trichostomoid areolation, 

 may belong here, but its generic position is somewhat doubtful. The 

 description of T. usambaricum (Broth.) Broth, reads much like it, 

 but I have not seen specimens. 



LEPTODONTIOPSIS FRAGILIFOLIA Broth. 



Heath Zone, epiphytic, 12,000 ft.; Nos. 3447g, 3772c; also No. 

 3756 in the Kew set. St. A very distinct plant. 



TORTULA CAVALLII Negri 

 Nos. 3406, 3410, 3424. 3430b; mostly c. fr. 



TORTULA EU-BRYUM (C. M.) Dixon 



Tree heaths in crater, 13,500 ft.; No. 3426. With numerous 

 setae and a few old capsules, apparently small for the size of the 

 plant. It has not been found before in fruit. (Some of Diimmer's 

 specimens issued under this number do not belong here but to 

 T. Cavallii.) 



GRLAIMIACEAE 

 GRIMMIA OVATA Web. & Mohr. 



Nos. 3403, 3403b, 3409d, 3412c, 3418; mostly c. fr. JMost or 

 all of these gatherings were epiphytic, on bark of trees, a very curious 

 condition. 



ORTHOTRICHACEAE 

 ANOECTANGIUM sp. 

 Heath Zone, epiphytic, 12,000 ft.; No. 3759d. A small, delicate 

 species, with numerous setae and a few capsules in very old, poor 

 condition. It has the appearance of A. IVilnisianuni (C. M.), but 

 shows larger, more pellucid cells, more tapering, short-acuminate 

 leaves, etc. 



AMPHIDIUM CYATHICARPUM (Mont.) Broth. 

 On tree heaths; No. 3422b, c. f r. ; No. 3444c (p.p.). st. 



ZYGODON EROSUS Mitt. 



No. 341 2I), St. I have seen no specimens of Mitten's plant, but 

 from the description there can be hardly a doubt that this belongs 

 there. 



