THE GREEN MUSCARDINE FUNGUS IN PORTO RICO. 



{M( tarrhizinni anisoplici' [Metsch.] Sorokin. ) 



By .loiix A. 8TEVEXS0X, Pathologist, Insular Experiment Station. 



The green Diuseardine fungus is ont^ of the best-known of tlie 

 fungi attacking injurious insects, and as such lias been studied and 

 observed in many parts of the workl. It occins a])i)<irently indige- 

 nous in some countries, and has I)een introduced into vai'ious others 

 in an endeavor to make use oi' it in the tiglit against insect pests. It 

 is pi'obable that with the exception of the work with Sporolricli iiin 

 fjlohuliferiOH, an enemy of the chincli bug jind othiM- insects, more 

 lias been done witli this fungus than with any other of a simihn- na- 

 ture. Although oi'iginally described from Euroi)e. most of the stiul- 

 ies uj)(m it and attempts at its artiticial dissemination have lieen 

 made in the ti-opics or subtropics and in conn.'ction with sugar-cane 

 insects. 



HISTORY OF THE FUNGUS. 



The fungus was first noted and described by Metschnikoff (28)^ 

 in Russia in 1879 as Entomo phi horn auisopHm. Since tliat time 

 it has been redeseribed under several other names or new combina- 

 tions.- Rorer (29) has given a full account of these nomenclatural 

 details. The combination adopted by him in 1!)1() has been used 1)y 

 other workers since that time, and is also used in this ])a|M r. 



Since the original discovery in Russia. Mctarrhizinm has been 

 found occurring naturally in France (6), United States (25), Mexico 

 (40). Trinidad (4, 12). Samoa (Si. Philippine Islands (2). Queens- 

 land CW). Java (2G. 41). Hawaii (l(i, 17). and Porto Rico. In ad- 

 dition the fungus has been introduced foi- 1ii;il under artiticial con- 

 ditions into -Mauritius (5). -lava ill. :51 ). Porto Rico (42). Cuba, 

 and Argentina (7j. ('u1tui-es from tliis laboratory have been sent 



' Kijjures in paiciitlicsiK refer to literature eited. )). 28, 

 - }fi'tarrhiziinii niiiiiripHnv (Melscli.) Sorokin. 



E)i'niii<iiilith(ini aitixii/iliiif (Mctsi-li.) {'J'-'). 



Mitiinhizhitii atiix'i/ilidf Soi-okin (^jS). 



Ixnria dcKlrtirtur Xfetseh. (24). 



itospura dextnirtiir Delacroix (6). 



I'enicilUum anisopliae Vuillemin (-13). 



Septocylindrium nuxpectiim Massee (22). 



Ghromostiilim anisopliae Sorokin (?). 



PeiiicilUiim anijiopUae Vuillemin (43). 



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