PLcell.aph. 1. HYDROPHYTiE. 16. Conjugat. 297 
XVI. 16. CONJUGAT A. Vaucher. Conjugate . 
Thallus threadlike, simple, tubular, jointed ; coupling 
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 line . 
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, Roth Cat. Rot. 2,202; Engl. Rot. 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. 
/3. port icalis. Spire bent like an arched gateway. 
Conferva porticalis, Muller , ut supra. 
Conjugata porticalis, Vaucher , 66. 
Zygnema quininum porticale, Lyngbye Hydr. Dan. 173. 
y. monstrosa. Tale proceeding from the joints uniting 
with the tube proceeding from the next joint of the same 
plant. 
2. Conjugata inflat a. Blown conjugate. 
Threads here and there inflated; granules in a single 
open spire. 
Conjugata inflata, Vaucher , 68. 
Conferva sordida, Roth FI. Germ. 3, 504. 
Conferva inflata, Engl. Dot. 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 ; granules in a simple, very open spire, forming very- 
blunt angles. 
