EXTRACTS AND ABSTRACTS. 61 
corolla appears to be regardedas a single 5- fid leaf ; the five rudimentary 
andreecial fibro-vascular bundles not having been seen, ar 
to be absent ; moreover, unicellular anthers are held to be normal, and 
the double stamen, instead of being “ee as resulting from union 
of two single ones, is said to be due to increased energy of growth, 
inducing formation of a connecting tissue; the ‘‘ disk?’ of the male 
flower is looked upon as a pistillar, and that of the female flower as 
second layer of oe. periblem of the growing apex. This state is 
figured, and is very ieovagmgys§ in connection with what is known of 
the origin of the ovule in Primulacee and Aydnor ore@. Here, as in 
Cueurbitacee, the inner integument of the ovule is regarded as a tri- 
chome, and the outer as a — 
ntste- 
hung ist kein Absolutes Kriterium fiir ‘den Scashaladenlen Wirth.”’) 
ReEpropuction oF THE AscoMYCETES. 
Reproduction des Ascomycetes. Par M. a Cornu. (‘ An- 
nales des Sciences Naturelles,” 1876, p. 53.)—The term “ spermatia” 
has hitherto been applied to conidia-like bodies collected in special 
cavities, and thought to be incapable of germination. Tulasne had in 
some instances observed germination of bodies similar to spermati 
but where budding did not result, instead of doubting the perfection 
of his cultural methods, he believed he had to do with sexual elements, 
water with 1 p.c. of sugar and 0°4 p.c. of tannin, though in a few 
i ces simple water was the most advantageous camila of growth. 
With these results in hand, M. Cornu thinks it ee ‘suppose 
