4 MEMOIRS OF THE NEW YORK BOTANICAL GARDEN [VOL. 10 



Octoblepharum mittenii Jaeg. 



VENEZUELA: Bolivar: Chimanta Massif, forested slopes, along trail between Camp 2 

 and 3, northwestern part of Abacapa-tepui alt. 750-1100 m, Steyermark 74828. 



Octoblepharum tatei (Williams) Bartr., comb. nov. 



Carinafolium tatei Williams, Bull. Torrey Club 58: 502. 1931. 



VENEZUELA: Amazonas: Cerro de la Neblina, Rio Yatua, in upper Canon Grande 

 basin, elev. 1900 m, Bassett Maguire, John J. Wurdack 4" Celia K. Maguire 42358. Bolivar: 

 Chimanta Massif, vicinty of Camp 4, Apacara-tepui, alt. 1800-2000 m, Steyermark 74980a. 



The sporophyte characters as shown in no. 42358 are as follows : setae slender, 

 reddish, 15-20 mm long:; capsule erect, cylindrical, the urn 2 mm lon£; peris- 

 tome teeth 16, pale, hyaline, faintly papillose, apparently in 8 pairs (the cap- 

 sules all old and deopereulate with only vestiges of the peristome remaining). 



As the sporophyte shows no distinctive characters, the dorsal keel of the eosta 

 is the only feature that separates this species from Octoblepharum. Under the 

 circumstances it seems more practical to include the species in Octoblepharum 

 where it obviously belongs. 



Leucobryum martianum (Hornsch.) Hpe. 



VENEZUELA: Bolivar: Chimanta Massif, southwest slope forest and savannas, Ptari- 

 tepui elev. 1500-2000 m, Maguire 4 Wurdack 33982; densely forested slopes between upper 

 reaches of Rio Tirica (left-hand fork) and Riscobel Ledema Camp, southeast portion of 

 Apacara-tepui, alt. 1700-1850 m, Steyermark 75964; moist mossy forest, vicinity of Camp 4, 

 southwestern edge of Apacara-tepui, alt. 1600-1800 m, Steyermark 75027 ; slopes and talus 

 forest, Sarven-tepui, alt. 1200 m, Wurdack 34358. Amazonas: Cerro Sipapo (Paraque), moist 

 woodland, Danta Falls, "Tapir Falls," alt. 1500 m, Maguire 4 Politi 27333. 



Numbers 75028, 27333, and 34358 represent the purplish-tinged form previ- 

 ously collected from the summit of Cerro Duida. 2 



Leucobryum crispum CM. 



One of the common mosses of the area, represented by seven collections at 

 altitudes of from 415 to 2000 m, on fallen logs and boulders. 



VENEZUELA: Cerro Sipapo (Paraque), mixed woodland base escarpment, upper camp 

 savanna, alt. 1500 m, Maguire 4 Politi 27669; North Savanna, alt. 1400 m, Maguire 4" Politi 

 27768 A ; with hepatics. 



Leucobryum albicans (Schwaegr.) Lindb. 



"VENEZUELA: Bolivar: Chimanta Massif, forested slopes below summit of western 

 escarpment, Torono-tepui, alt, 1970 m, Steyermark 4 Wurdack 707; savannas, vicinity of 

 Mission Santa Teresita de Kavanayen, alt. 1300 m, Maguire 4 Wurdack 33769; southwest 

 slope forest and savannas, Ptari-tepui, alt. 1500-2000 m, Maguire 4 Wurdack 33971; moist 

 mossy forest, vicinity of Camp 4, southwestern edge of Apacara-tepui, alt. 1600-1800 m, 

 Steyermark 75038. Amazonas: Cerro Sipapo (Paraque), cliffs North Savanna, alt. 1400 m., 

 Maguire 4 Politi 27772. 



Leucobryum albidum (Brid.) Lindb. 



VENEZUELA: Bolivar: Chimanta Massif, on large rock bordering savanna above summit 

 camp, alt. 1940 m, Steyermar\ 4 Wurdack 415. 



New to South America as well as to Venezuela. 



Leucobryum brevifolium Bartr., sp. nov. 



Caespitosum, caespitibus densis, infra fuscescentibus. Caulis ad 8 cm altus. 

 dichotome ramosus. Folia erecto-patentia, conferta, ovato-lanceolata, concava, 



2 Pieldiana Bot. 28 4 : 702. 1957. 



