384 Wisconsin State Hobticultueal Society. 



oospores of the latter gradually appeared, there also appeared much 

 smaller bodies, which also went to rest ; these were so similar in 

 size and appearance to antheridia or dead zoospores, that they 

 were thought to belong to one or the other. When I recently 

 placed some of the presumed oospores of Peronospora in pure 

 water to promote germination, all the small bodies at once burst, 

 and in the short space of six hours developed into perfect plants 

 of Fusisporium Solani. In size the spores measure about the 

 ■2-5V0 of ^"^ inch in diameter, palish brown, with a very finely 

 muricated outer coat and a light central nucleu?. The Fusi- 

 sporium is frequently produced close to the resting spore, and I 

 have observed the direct germination and production of the 

 Fasisporium in innumerable instances. How these resting spores 

 arose last year I am not certain, but it is not improbable that they 

 may be a different condition of the aerial fruit broken up into 

 four parts. 



INJURIOUS AND OTHER FUNGI. 



Prof. Byron D. Halsted, in Massachusetts Horticultural Society- 

 Transactions. 



From the early days of botanical science, the vegetable king- 

 dom has been divided into two grand divisions, namely : Phce- 

 nogamous or flowering plants, and Cryptogamous or flowerless 

 plants. 



It is unnecessary for us to point out illustrations of this first 

 great group, because they are as familiar to us as household 

 words, in the trees which spread their lofty tops above our heads, 

 or the grass which grows in the meadows and pastures at our 

 feet. With the cryptogams the case is somewhat different. The 

 Ferns, the royal members of the cryptogamic series, are, with us, 

 only herbs of yearly growth ; while Mosses and Lichens lay but 

 a carpet on the rocks and hillsides. The Sea-weeds, though cer- 

 tain species grow large and cumbrous, are usually small, and 

 many are microscopic, and Fungi, the last of all, are too often 

 known to the natural sight only by their effects. It is to a con- 



