Fitzpatrick : Monograph of the Coryneliaceae 261 



Since these species are all closely related, the examination of 

 abundant material was desirable as having a bearing on the 

 question of their possible inclusion in a single species. In C. 

 portoricensis plenty of material was available and a count of the 



2- lobed and 3-lobed perithecia gave the following results. On 

 281 stromata examined there were 344 3-lobed perithecia in a 

 total of 3025 individuals, or approximately 11 per cent. In other 

 words a cluster of 10 perithecia contains on the average a single 



3- lobed individual, the remainder being 2-lobed. Practically no 

 variation from this percentage was obtained after the first 500 

 individuals were counted. Moreover on an average 11 perithecia 

 are developed on a stroma although the limits are from 1 to 33. 

 On only 1 of the 281 stromata examined were there more 3-lobed 

 than 2-lobed perithecia. In this case the count was 7 to 4. On 

 the other hand 1 stroma examined contained 33 2-lobed indi- 

 viduals to 1 3-lobed one, while stromata bearing as many as 20 2- 

 lobed perithecia and no 3-lobed ones are frequent. ' 



Corynelia portoricensis is described by Stevens (49) as C. 

 clavata var. portoricensis. It is clearly much more closely related 

 to C. oreophila than to C. clavata (C uberata). The latter 

 species is unknown from the Western Hemisphere. 



Material Examined 



Porto Rico : Brooklyn Botanic Garden, New York Botanical 

 Garden, Cornell University, Exploration of Porto Rico. No. 

 698 (material collected by H. H. Whetzel and E. W. Olive and 

 deposited at the three above named institutions and at Harvard 

 Univ. : that at Cornell University PL Path. herb. No. 9655, 

 Fitzpatrick Herb. No. 1021 and Whetzel Herb. No. 698) ; New 

 York Botanical Garden, Carnegie Institution of Washington, 

 United States National Museum, West Indian Exploration 

 191 3, No. 2462 (material collected by N. L. Britton, F. L. 

 Stevens and W. E. Hess ; specimen at N. Y. Botanical Garden 

 studied, portion of it in Fitzpatrick Herb. No. 1194) ; Her- 

 barium University of Illinois, Porto Rican Fungi No. 784 

 (type, part of it deposited as Fitzpatrick Herb. No. 1591). 



