435 



a short black papilla surrounded by an erect collar. Asci about 

 45 x 8 p; spores biseriate, fusoid, subacute at both ends, 4- 

 guttulate, 12-14 x 3*5-4 p., remaining for a long time eseptate. 



On the apophysis of the cone-scales of Pinus silvestris (Desm. 

 Crypt. Fr. no. 1773:). 



Distinguished at once from the fully developed state of D. 



occulta by the absence of the long cylindrical ostioles of the 



I latter; in D. occulta the stroma is outwardly brownish-black and 



opaque; in Z>. conorum it is mostly shining and inky-black — in 

 both it is bounded within by a narrow black line. The difference 

 of host seems, so far as known, to be constant, but that question 

 must be left for the future to decide. 



Let us assume that it is constant. Then it is plain that 

 Phoma conorum, Sacc. (Syll. iii. 150), since it is on " Abies," is 

 not the spermogone of Diaporthe conorum (Desm.), as Saccardo 

 asserts. Moreover it does not agree with Desmazieres' own 

 exsiccatum, named " SpJiaeria conorum, Desm." It is really 

 one of the spore-forms of Phomopsis occulta, Trav. (see below). 



Of Phomopsis conorum (Desm.) ? Died, not enough was found 

 to justify description at present, except that the spores are 

 ellipsoid and measure 8-9 x 25-8 p. Of Phomopsis occulta 

 Trav. three spore-forms were seen. 



Phomopsis occulta, Trav. I.e. p. 221. 



A-spores — Pycnidia roundish or more often oblong, 200-250 ix 

 long, black, imperfect, immersed, convex, then bursting the 

 epidermis above for the most part in an hysteriiform manner, 

 often arranged more or less in lines ; texture rather thick above ; 



r 



, when mature; sporophores crowded, filiform, 

 nally straight, 12-15 x 1-X'o p, rising from a 



the epidermis all round is faintly stained with blackish longi- 

 tudinal streaks. Spores numerous, narrow-oblong, somewhat 

 sausage-shaped, curved in profile view, rounded above, obliquely 

 apiculate below, at times faintly bignttulate, 9-10 /*, then 



10-13 x 2-2'5 f i 



acute at apex, usua 

 soft brownish stratum. 



On outer surface of cone-scales of Picea cxcelsa, at the tip, 

 Nannau Park, Dolgelley (Ellis). (Fig. 4, a.) 

 . Except that the spores are longer (? more mature), these- 

 specimens are much like those described by Fuckel (Nachtr. iii.. 

 23), He did not issue any dried specimens of the spermogones, 

 but observes that they occurred on the outside of the scales, on 

 the same stroma which, on the inside, produced the ascophoroue 



perithecia. 



Here it should be noted that Fuckel (? in error) records (Synib. 

 Myc. p. 210) the host of his Valsa occulta (Fung. Rhen. no, 622)^ 

 as Pinus exceha, whereas the scales in the exsiccatum are ob- 

 viously those of Picea exeelsa, or as he calls it thereon " Pinus 

 A hies [ ' ' 



Those who have to examine the exsiccata issued by Eounieguere 

 are aware that they are very disappointing, being frequently 

 badly named and often deficient in quantity. But in this case 

 it was decidedly different, for his exsiccatum no. 1727, imder the 

 name "Phoma (Diaporthe) conorum, Sacc. Sfhaeria Desm. 



