1 



242 



innumerable small oval or oblong corpuscles. This 

 second system, represented in fig. 2, he calls 

 Pycnides. 



Fig. 2. 



Such are the two sorts of reproductive organs 

 which constitute the Oidium Tuckeri of Berkeley ; 

 which is, however, only one of the Un/siphes, the 

 last and perfect form of which has not yet developed 

 itself. 



This, the latest and most important form, con- 

 sists in globular conceptacles, sessile, at first color- 

 less, then yellowish brown, and finally black and 

 more or less spotted, which bear, like the two first 

 sets of organs, certain filaments of the mycelium. 

 They are all accompanied at maturity with a vari- 

 able number of filiform appendages, whose form, 

 dimensions, and position vary with the spores under 

 consideration (fig. 3). They are simple or branch- 



ial^. 3. 



ing, and frequently terminate in arms divided into 

 pairs. In the bosom of the conceptacles are found 

 sacs or thecaj variable also in number, generally 

 ovoid, attached by a short claw to the base of the 

 conceptacle. The number of spores, which are con- 

 stant to each species, vary from two to eight. The 

 conceptacles open irregularly in order to permit the 

 theca or spores to issue. 



THE PENNSYLVANIA HORTICULTURAL 



SOCIETY 



Will, this year, hold their annual exhibition on 

 September 24th, 25th and 26th, in their new hall. 

 The time has been fixed late, so that Western hor- 

 ticulturists, when they get done with St. Louis, may 

 have time to escort their Eastern friends back, and 

 have something attractive for their reward. It is 

 not necessary to be a member of the Society, or a 

 resident of Pennsylvania in order to compete before 

 this Society. It is in a certain sense a nationalSo- 

 ciety, and it is hoped horticulturists every where 

 will exhibit their treasures in response to the So- 

 ciety's liberality. Schedules of premiums may be 

 had of the Recording Secretary, Mr. A. W. Har- 

 rison, Commerce Street, Philadelphia, — or of the 

 Chairman of the Committee on Exhibitions, Thos. 

 Meehan, Cermantown, Pa. ; or of any member of 

 the Committees. 



PALL PLANTING OP ASPARAGUS. 



Among the many valuable ideas for which we 

 have vanity enough to think the horticulturist is 

 indebted to the Gardeners Monthly, transplanting 

 trees just before, instead of after, the leaves fall, 

 stands prominent. This is but "Pall planting." 

 November setting out is really Winter planting. 



Every year as we note observations and make ex- 

 periments, we can see that this early Fall practice 

 will 3^et be applied to many valuable purposes we 

 now have little idea of. Within the two past years 

 we have watched experiments made by several gen- 

 tlemen on planting Asparagus in August, and the 

 result is a remarkable success. 



The ground is prepared as for the crop at any 

 other season, and after cutting off the green tops of 

 the young seedlings the roots are set precisely as in 

 Spring planting. They push new roots at once, 

 and make eyes so strong that even from one year 

 old seedlings, some Asparagus— but not, of course, 

 very strong — has been cut the following Spring, — 

 and where two year old roots have been used, a full 

 crop has been cut in ( ■ g same time, — a result no 

 one expects from Spring planting. 



In this region the plan has taken strong hold of 

 gardeners, and Asparagus planting is likely to take 

 rank at once with the Strawberry as a regular 

 August operation. 



It will, of course, be best in such cases to cover 

 the beds, after they have once become frozen, with 

 some kind of htter, not to keep out frost, but to 

 prevent thawing and freezing until the natural 

 Spring season comes ; or the plants may be thrown 

 out. 



il) 



