THE FRESHWATER ALG OF MAINE. 855 
lat. isthm. 8 »; crass. 14 ». Scarbro’.—C. protuberans Lund. var. 
jpdbialetyni Wolle. oRlaaie. wid " ~~ Orono and Bangor. — C. 
en Ai crigeares Kirch. Sca — C. eductum Roy e 
t Biss. in 
Nord. Desm. fran Bornholm, = “198, tab. 6, fig. 8, ccs minor. 
ng. 28 «; lat. 21 »; lat. isthm ode Between Orono and 
gor ; Walker's Frog Pond, Orono. — C. perforatum Lund. Bog 
betwe o and Bangor, fatwent ; Gorham. — C. pseudo- 
pyranidatun Bind. *stenonotum Nor carbro’.—C. atlanthoideum 
Long. 238 oA mn b 19 p; lat. isthm. 7°5 «; crass. 12 p. 
Searhie’. — C, scenedesmus Delp. Bog between Orono and Bangor. 
—C. bioculatum Bréb. tan omphalum Schaar. (Magyar Desm. p. 270, 
fig. 9). f. swbquadrata. Forma subquadrata, sinu lineari. Long. 
15 p; lat. peels lat. isthm. 35 p; crass. 9p. Fig. 9. Between 
Orono and Bangor. A form is figured which had several granules 
— C. impressulum Elfy. Scarbro’. — C. Regnellii Wille (Bidrag til 
Sydam. Alg. Fil. p. 16, tab. 1, ~s * Walker’s Frog Pond, Orono; 
bog between Orono and Ba angor. — C. Meneghinii Bréb. var. Wollet 
Lagerh eo aus Bengal 7 8 [C. Meneghinii Wolle (Desm. of 
U, S. tab. 16, fig. 7 sinistra, supe Scarbro’, very frequent ; 
]. 
Sine -t: margaritatum ( Lund.) hai Biss. (Jap. Desm. p. 194). 
C. latum Bréb. var. petted Lund. (Desm. Suec. p. 26)]. 
ig. 16. Scarbro’, very abundant.—C. Pardalis Cohn. Zygospore 
subglobose, ee Long. 2-49 ts lat. 40-48 p; lat. isthm. 
15 »; crass, 20-22 »; diam. zygosp. 838-42 ». Scarbro’, abundant. 
—C, Blyttii Wille. "Tong. 16-19 K - lat. 16-18 yp; lat. isthm. 5 » 
Scarbro’; Walker’s Frog Pond, Orono.—C. ps: (Bory) Memnoti 
var. tumida Wo lle, and C. ornatum Ralfs var. protractum Wolle. 
Scarbro’. — C. quinarium Lund. Bog between ‘Orono and B 
pulcherrimum Nord. (Desm. Brasil. tab. 3, 2 Searbro’. 
—C. notabile Bréb. Long. 82 p; lat. 23 »; lat. isthm. 9°5 p; 
crass. 14 Gorham.—C. moniliforme (Turp.) Ralfs var. punctatum 
Lagerh, (algologiska Bidrag, ii. Alg. aus Cute, Jamaica, und Puerto 
ee 197), C. contractum Kirchn., and .C. pseudoconnatum Nord. 
Xanthidium were erie Ex “ae var. Minneapoliense Rips 
bro’. — X. ncinatum Bréb. 
Var. wncinatum Brob. ‘boas. pie bem Forma spinis distine 
mucronatis. Long. sine spin. 48 p; long. cum page 58 eh it 
sine spin. 85 p; lat. cum spin. 42 »; lat. isthm. 9 #; crass 
Fig. 11. Scarbro 
Staurastrum cuspidatum Bréb., 8. megacanthum Lund., S. hystria 
Ralfs, S. spiniferum West, forma spinis sublongioribus et tenui- 
oribus ; and = a lea Party. Scarbro’. — 3. globosum Roy et 
. : e s- 
Tat. isthm. 20 »p. Fig. 12. Bog between Orono and Bangor. —- 
iy 
sinu Looe semicellule a Bere vise Shasbus pci "To ong. 
; lat, 88-45 pw; lat. isthm. 16-17 p. Fig. 14. Scarbro’. 
2a2 
