1905] Cushman,— Desmid Flora of New Hampshire IIS 
curved, tumid in the middle, apices truncate: membrane punctate 
between the striae: smaller than the typical form of the species. 
North Woodstock! (H. C. no. 189.) 
* C. REGULARE Bréb. Length 250 mw: breadth 37 m: apices 8 y. 
New to U. S. (H. C. no. 107.) Intervale! 
C. STRIOLATUM Ehrenb. Length 332 pu: breadth 37 mw: apices 
12.4 p. Saco Pond (Wood). Meredith ( Wests). Plymouth ( Wests) 
(H. J. no. 382) ! 
VAR. INTERMEDIUM (Ralfs) Jacobs. Length 245 4: breadth 34 p. 
Intervale ! 
* VAR. ELONGATUM Rab. Length 400 u: breadth, 25 u. Inter- 
vale! 
* VAR. ERECTUM Klebs. Length 360 p: breadth 34 u. (H. C. 
no. 187.) North Woodstock ! 
* Closterium intervalicola sp. nov. (PLATE 61,FIG. 1.) Length 
168 u: breadth 15.5 4: apices 6 q. Small Closterium with the 
median portion nearly straight, but with the ends decidedly curved: 
apices squarely truncated: about six visible striae: cell wall of a 
light yellowish color in empty cells. Intervale! (H.C. no. 104.) 
C. yunctpuM Ralfs. Length 320-375 m: breadth 6-8.5 m: apices 
3.5 p. Pudding Pond, North Conway! Saco Lake ( Wood). 
C. DraNaE Ehrenb. Length 325 mw: breadth 25 p. Pudding 
Pond, North Conway ! 
C. PARVULUM Nag. Length 108-170 p: breadth 10-13 mw: apices 
1.5-2.5 pw. Pudding Pond, North Conway ! 
* C. INCURVUM Bréb. - Length 68 u: breadth 12 p. New to U. S. 
(H. C. no. ror.) Intervale! 
C. Venus Kütz. Length 72-75 p: breadth 9-10 m. Bog near 
Noone's Station! Mt. Moosilauke, common! 
* C. CALOSPORUM Wittr. Length 108 u: breadth 10 y. Pudding 
Pond, North Conway! 
C. ACUMINATUM Kütz. Length 325-360 mw: breadth 25-31 y. 
Pudding Pond, North Conway! 
C. MONILIFERUM (Bory.) Ehrenb. Length 265 pu: breadth 4o m. 
Intervale ! 
C. EHRENBERGII Menegh. (C. robustum Hastings.) Length 400- 
480 u: breadth 100-120 u. Page Brook, Rochester (Hastings). 
C. ACEROSUM (Schrank.) Ehrenb. Length 450 4: breadth 38 y. 
Intervale ! 
