Brixton: West Indian mosses 667 



Meteorium nigrescens Mitt. Jour. Linn. Soc. 12: 441. 1869. 

 Papillaria nhrescens Donnellii Aust. Musci App. Suppl. 14. 1898. 



Habitat and type locality: "On branches of trees, high 

 mountains of Jamaica. Collected on Anacardium occidentale." 



Distribution: Louisiana, Florida, and the Bahamas; Jamaica, 

 Cuba, Haiti, Porto Rico, Barbados, and Trinidad to South America; 

 also in Lower California, Mexico, Guatemala, Costa Rica, and 

 Panama. Also in South America, 



Illustrations : Hedw. Sp. Muse. pi. 65. 1801 ; Schwaegr. Suppl. 

 pi. 244. 1828; Bryologist 7: 14. 1904. 



Exsiccatae: Austin, Musci App. Suppl. 533, Sull. Musci Cub. 

 Wright. 83. 



The var. Donnellii is simply a xerophytic condition in 

 which the leaves fall ofif and the terminal branches become 

 brittle, thus propagating the species; in fact, the fruit is seldom 

 found. Austin and J. D. Smith collected it at Caloosa, Florida, in 

 1876-78 and Mr. Severin Rapp has reported it from Sanford. In 

 all our Jamaica collections I have found it but once, on a calabash 

 tree. 



28. Prionodon densus fSw.) C. Miill. Bot. Zeit. 2: 130. 1844 



Hypnum densum Sw. Prod. 141. 1788. 

 Hypniim densum- Hedw. Sp. Muse. 282. 1801. 

 Hypnum? densum Sw. Fl. Ind. Occ. 3: 1829. 1806. 

 Neckera crassa Hornsch. Fl. Brazil, i: 56. 1840. 

 Piloirichum densum C. Miill. Syn. 2: 160. 1850. 



Habitat and type locality: "In Blue Mountains, southern 

 Jamaica, on roots of trees." 



Distribution: Jamaica, Cuba, Haiti, Mexico, Costa Rica, and 

 Panama, 1,500-2,000 ft.; also in South America. 



Illustration: Hedw Sp. Muse. pi. 74 (from Swartz' type); 

 Bot. Zeit. 2: pi. I. ' 



Fxsiccatae: Pringle, Musci Mex. 10,483. 



29. PiLOTRiCHUM COMPOSITUM (Sw.) P. Bcauv. Prod. 82. 1805 



Hypnum compositum Sw. Prod. 141. 1788. 

 Neckera composita Hedw. Sp. Muse. 203. 1801. 

 Neckera composita Sw. Fl, Ind. Occ. 3: 1792. 1806. 



