28 



Spots suborbicular, minute, less in size than the head of a pin, 

 visible on both surfaces of the leaf and surrounded by a raised bor- 

 der. Fertile threads fasciculate, septate, black or dark-brown, .001' 

 0015' in height, bearing at their tips the clavate, 3-5-septate, 

 .0008' — 0015' long conidia; Only about two to four tufts of the 

 fungus grow on each spot. 



Septonema tabacinum, E. & H. — Pulvinulis e tabacino nigris, 

 sparsis; hyphis simplicibus, echinulatis, inconidiis cylindraceis, 3-4^ 

 septatis facile dilabentibus. 



On indurated pitch on the bark of an old pine log. Newfield, 

 N. J., Nov., 1880. 



Tufts scattered, about the size of a small mustard-seed, snuff- 

 colored at first, then becoming nearly black; erect threads simple, 

 echinulate, constricted at intervals and separating into cylindrical, 

 3-4-septate, .0008'' — .ooi'x. 00014' conidia. 



2^, Notes on the Flora of Presquellsle, Pa-— Several visits which 



I paid last year to our large peninsula enabled me to add a few more 

 species to the already large list of interesting plants found on that 

 remarkable' piece of land. The water in the ponds being unusually 

 low during the latter part of the summer facilitated access to some 

 places hitherto not visited. The muddy shores of the ponds abounded 

 in Utricular iae^ of which six species were found : U. vulgaris^ 

 L., U, minor^ L., U. irdermedia^ Hayne, U. gibba^ L., U. resupinatay 

 L., and U. cornuta^ L. Sparganium minimum^ Bauhin, Fries, was 

 found with prostrate leaves on places usually inundated. Polygonum 

 amp/nbiuyn^ I^., and P. Careyi^ Olney, grew side by side on the mar- 

 gins of some of the ponds. Growing in shallow water, I found Scir- 

 pus JiiwiatiHsy Gray, Carex aquatilis^ Wahl., and C, filiformiSy L. 

 Eleocharis quadrangulata^ R, Br., was never so thrifty before; both it 

 and the wild rice {Zizatiia aquatica^ L.) covered acres in the ponds, 

 and presented a serious obstruction to the passage with boats. The 

 wild rice was sown here a fevv years ago by the members of our Game 

 and Fish Association in order to induce the ducks and reed-birds to 

 make their homes on the peninsula. The soil and surroundings 

 seem to be genial to this western grass, for it conquers more and more 

 ground from year to year. 



On dried, sandy places I found in spring, Carex umbellatay Schk., 

 plentiful, and Oryzopsis asperifolia^ Michx., sparingly; later iti the 

 season I added Paniciim glabrnm, Gaudin, Bromus racemosus^ L., and 

 Lechea ;/2f7/'^r, Michx., as new acquisitions to my list. 



There is one spot near the eastern end of Presque Isle, that is a 

 perfect paradise for the botanist — a greater variety of beautiful and 

 interesting plants being seldom found on so small a space. Physo- 

 stegta Virginiana, Benth., is the first to adorn this spot with its long 

 spikes of handsome purplish-tipped flowers, and it is closely fol- 

 lowed by Sabbaiia angularis^ Pursh, finer specimens of which I have 

 seldom seen. Gerardia purpurea, L., Lobelia Kalmii, L., Linum 

 Virginianu7fi^ L., Utricularia cornuta, Michx., occupy the ground air 

 most all at the same time, and are followed by Spiranthes cernuay 

 Rich. A pleasing background to this natural flower-bed is afforded 



