182 Lake Maxinkuckee, Physical and Biological Siirvey 



straight cells, reaching the whole length of the internode. At each 

 node a whorl of trichomes or stipules of the shape and form already 

 described. Beyond any cortex is one long cylindrical naked cell 

 with its chloroplasts apparently in rows. This cell has near its 

 apex a whorl of short trichomes. The entire series ends in a pyra- 

 midal acutish apical cell. This plant is frequently covered with 

 very brown, boatshaped diatoms (Navicula). 



Common along the east shore of Long Point in sandy bottom 

 and shallow water. Found also near Lakeview hotel, and by Win- 

 field's. 



April 30, 1901, and for a few days after, patches were observed 

 coming up rapidly near shore, probably this. May 30, 1901, a very 

 dense minute growth probably this, east side. Culver Bay. 



33. NITELLA sp. 



One of the deepest growing species of plants in the lake is a 

 charad of which there appears to be considerable difficulty in get- 

 ting any satisfactory identification. It is found growing at a depth 

 of 25 feet, its range being from 12-25 feet. Dr. Scovell gives the 

 following notes concerning it : 



"A tall, slender, rank-growing plant, soft and flexible and quite 

 free from lime. To the naked eye the plant seems made up of 

 alternating light and dark sections of about the same length, per- 

 haps one thirty-second of an inch. It was most abundant in water 

 from 18 to 22 feet in depth, ranging from 12 ft. to 25 ft. It was 

 especially abundant in the deep hole just east of the Gravelpit 

 and along the bar running northeasterly from Long Point. Dredg- 

 ing in over 60 different localities we found this Nitella in 46 local- 

 ities in water from 18 to 22 feet deep. In 37 localities we found 

 it between 22 and 24 feet in depth, and in 34 localities we found 

 it between 16 and 18 feet in depth. It is rather more abundant in 

 the north, west and south than on the east." 



We have no record of having found this species in fruit, and it 

 is possible that, growing at such depths, it produces fruit but 

 rarely. It appears to be this species of which Dr. Robinson re- 

 marks : "The material seems to be entirely sterile and I cannot 

 match it with anything. It has much in common with the South 

 American N. monodactyla A. Br., so far as can be told from the 

 descriptions and from drawings and notes in the Allen herbarium, 

 but there is no South American material of that species in the col- 

 lections of the N. Y. Botanical Garden. There has also been pre- 

 served a copy of a letter from Dr. Allen to some unnamed person, 

 probably Rev. Thomas Morong, from which it would seem that the 



