112 PETCH : - 



Nectria hsematococca is one of the commonest of Ceylon 

 Nectrias, tand occurs in abundance on dead Hevea brasiliensis, 

 tea, &c. Rutgers has described, from dead Hevea brasiliensis, 

 Nectria cancri, which agrees in many points with the smaller- 

 Bpored forms of N. hgematococca. Rutgers does not mention 

 the warts on the perithecium in his description, but he shows 

 them in his figure. He gives the asci as 90 x 6 [i, and 

 the ascospores as 10-13 X 3-5 [x, distinctly constricted. 

 The shape of the spores matches that of the spores of the 

 Ceylon form previously named Nectria diversispora. Rutger's 

 measurements are from specimens grown in pure culture. 



In a paper entitled " The Fusariums from cankered cacao 

 bark, and Nectria cancri nova species " (Ann. Jard. Bot. 

 Buitenzorg, Ser. 2, XII., pp. 59-64), Rutgers distinguishes two 

 species of Fusarium, one of which he identifies with Fusarium 

 (Spicaria) colorans de Jonge, and the other with Fusarium 

 theobromae Appel and Strunk. In culture, Fusarium theo- 

 bromas produced perithecia, which were named by Rutgers 

 Nectria cancri. It has previously been pointed out that the 

 two Fusariums on cankered cacao bark are those of Nectria 

 diversispora and Galonectria rigidiu§cula (C cremea Zimm.), 

 and that the Fusarium which produces the red colour in 

 cultures {Fusarium colorans) is that of the latter species 

 (Circukirs, Royal Botanic Gardens, Peradeniya, V., No. 13). 

 Nectria coffeicola Zimm., from the description and figures, 

 appears to be also Nectria hsematococca. 



Nectria fuliginosa B. & Br. 



This species was described by Berkeley and Broome in 

 Fungi of Ceylon, No. 1019, from Thwaites 146, as "Conferta: 

 peritheciis fuligineis varie coUapsis leevibus ; sporidiis 

 metulseformibus uniseptatis. Sporidia 15-17-5 [x long." 



In the cotype in Herb. Peradeniya the perithecia are 

 scattered, or in small pulvinate groups on a feebly developed, 

 erumpent stroma, globose, about 0-2 mm. diameter, collapsing 

 irregularly, now black or bro-\vnish-black, pruinose. The 

 wall is composed of rather small cells, and is blackish-brown 

 when moimted ; it bears small warts, sometimes conical and 

 up to 40 (JL high, and projecting cells, which are sometimes 



