4 



Polygonum Careyi, Olney. Sparingly in ditch along track of Hud- 

 son R._R. R., below Kings Bridge'. Sept. 7, 1879, just in flower. 



P. amphibium, L. With the above, and in flower a little in advance 

 of it. 



Betula nigra, L. A tree of four trunks, about 20 feet high, grows in 

 low wood near the city limits, about ^ mile east of Broadway. 

 B. lutea, Mchx. L. Several trees along a rocky stream between 



Kings 



Williams Bridge and Woodl 



Zannichellia palustris, L. Marsh near Broadway, above 



Bridge ; also between this station and Morris' Dock. 



Spiranthes graminea, Lind. var. Walteri, Gray. A single plant 



found in 1878, f mile N. of Kings Bridge. Not since discovered. 

 S. Simplex, [?] Gray, Several plants found on dry grassy ground in 



Woodlawn Cemetery, Had been in flower some time, Aug. %o, '79. 

 Calopogon pulcheilus, R. Br. Rare ; a single plant only. 

 Liparis liliifolia, Rich. Have found this plant at several localities, 



both close to the river, and two miles inland, sometimes growing 



quite abundantly. In flower, May 26, 1879. 

 Aplectrum hyemale, Nutt. Sparingly in OKff Park, less than a 



mile N. W. of Jerome Park. May i, 1879, full flower. 



Cypnpedium parvinorum, Salisb. 



_ in full flower near the City limits. 



J 



I, 1879, a single plant 



rendering 



Smilax glauca, Walt. Not uncommon. 



Polygonatum giganleum, Dietrich. At several localities 



Allium triCOCCum, Ait. Found only in a glen by the river where it 

 It is not uncommon. A luxuriantly growing bed of these plants 

 m full flower, July 22, 1879. 



„ 41. Teratology. 



The study of abnormal growth, besides affording excellent 

 practice m the principles of morphology, is capable also of 



._ very important assistance in tracing the derivation of 

 forms, and perhaps in determining whether an existing form is an 

 advance or retrogression. In the new edition of Gray's Text Book 

 a sufficient sketch of the subject is given with reference to the 

 special vvriters on the subject, but all its bearings have by no means 

 been exhausted, and we are reminded by the following notes to call 

 the attention of students to the close investigation of such cases, 

 remarking that they are not the less interesting because they ma^ 

 have been observed before; m fact, that the frequent repetition of 

 the phenomenon gives a better opportunity for exploring it 



Carya alba, Nutt.-The triangular or trique- ^ 



ous nuts of Carya alba, Nutt., noticed in the 



February Bulletin by Mr. Britton, are very 

 common here, some trees [Carya alba ?] yield- 

 mg quite a percentage of the abnormal form 

 Possibly this form of nut may be more com- 

 mon here than at the East. 



Painesville, Ohio 



H. C. B. 



(The nuts sent us, a cross-section of one of \^ 



wh,ch we represent herewith, appear to be those of CaryT^ulcata. 



