( 208 ) 



Above tliis layer the spores form two layers or storeys. A third 

 layer does not exist, as the space, required for it, is oec-iipied by the 

 spores which have loosened themselves and have become entangled. 



The spores have an elongated (cylindrical?) shape and are colour- 

 less and nndivided. Their foot is rounded and encloses (Fig. 4 and 5) 

 a circular or oxal, glossy vacuole; their top is more pointed and 

 empty. They measure 7 — 8 n in length and V/.^ii in breadth. 



The diiFerence between Leptostroma austriacum aiul other Lepto- 

 stromata, peculiar to jiine-needles, like L. Pinorum, L. Püia.itri and 

 others, is: that in the latter the perithecia form most ly narrow parallel 

 series; that the spores are not broader than 0.5;/, and finally, that 

 no vacuoles are found. 



The Latin diagnosis of the new species is as follows: 

 "Peritheciis cuticulam inter et epidermidem occultatis, amphigenis, 

 irregulariter distributis, majoribus et niinoribus, item longioribus et 

 brevioribus intermixtis, dimidiatis, nigris, opacis, diu clausis, tandem 

 irregulariter ru|)tis, persistent ibus Jiecpic decedentibus nee circumcirca 

 a substrato soliitis. Sporulis sessilibus, cylindraceis, hyalinis, continiiis, 

 vulgo 7.5 X ^ i"' l>'^^' I'olundatis guttulacjuc sphaerica vel ovali, micanle, 

 pi'aeditis, a[)ice acutiusculis, vacuis." 



EXPLANATION OF THE FIGURES OF PLATE I 

 Fig 1. A piece of a needle of Pinus uustriacu with small lieaps of perilhecia 

 (p.) on them. ('Vj). 

 „ 2. Vertical section of a not yet fully mature perithecium. 



a. Cuticle. 



b. Epidermis. 



c. The two layers of rod-shaped colourless spores. ("°7i)- 

 „ 3. Vertical section of a ripe perithecium which has hurst open. 



a. Cuticle. 



b. Epidermis. 



c. Spores-, partly undamaged, partly in a displaced position. {'^^^/\). 



„ 4. Spores, with a rounded foot and a sharper top. At the foot a vacuole. 



(1000/^). 



„ 5. The same (2ooo/^). 



2. HYMENOPSIS TYPHAE (Fuck.) Sacc. 

 (Plate II). 



This fungus, found for the first time at Nunspeet in July 1904 on 

 the withered leaves of Ti/pha Jntifolhi, was sent tome among many 

 others by Mr. C. A. G. Beins. 



