Pi. cell.aph. 1. HYDROPHYT. 16. Conjugat. 297 
XVI. 16. CONJUGATA. Vaucher. Conjugate. 
Thallus threadlike, simple, tubular, jointed; couplin 
parallelly, by a traverse tube, exserted from the middle of 
the joints, through which the granules in the joints of one 
plant pass into the opposite joint of the other plant, and 
there form an ovate spore; granules forming spiral lines 
in each joint. 
a. Granules in a single spiral_tline. 
1. Conjugata quinina. Roman-five conjugate. 
Threads equal, slippery, coupling; joints three times as 
long as broad; granules in a single, very close spiral line. 
Conferva quinina, Muller N. Act. Petr, 3, 94, 
Conferva spiralis, ftoth Cat. Bot. 2,202; Engl. Bot. 1636, 
Conjugata quinina, Agardh Disp. ed. 1, 27. 
Zygnema quininum, Agardh Decad. 2, 26. 
Ditches and pools. 
Tufts dark green; joints from once and an half to four 
times as long as broad; spiral angles acute, like the letter 
V often repeated. : 
8. porticalis. Spire bent like an arched gateway. 
Conferva porticalis, Muller, ut supra. 
Conjugata porticalis, Faucher, 66. 
Zygnema quininum porticale, Lyngbye Hydr. Dan. 173. 
y- monstrosa. Tule proceeding from the joints uniting 
with the tube proceeding from the next joint of the same 
plant. 
2. Conjugata inflata. . Blown conjugate. 
Threads here and there inflated; granuées in a single 
open spire. 
Conjugata inflata, Vaucher, 68. 
Conferva sordida, Roth Fl. Germ. 3, 504. 
Conferva inflata, Engl. Bot. 2376. 
Zygnema inflatum, Agardh Syn. 101. 
Ditches. 
Tufts cloudlike, yellowish green; threads very slender ; 
joints three times as long as broad, thicker in the middle; 
spot rarely obsolete. 
\ 
3. Conjugata longata. Long conjugate. 
Threads equal, slippery; joints 6 to 12 times as long as 
broad; granudes in a simple, very open spire, forming very 
blunt angles. 
