CHANTRANSIA. 59 



Sirodot finds that certain Chantransia-Iike forms represent 

 undeveloped conditions of Batrachospermum,\)\\t he has by 

 no means proved that all forms of Chantransia are such un- 

 developed forms ; on the contrary, he admits that some of 

 the species have a sexual existence. 



CHANTRANSIA MACROSPORA, Wood. 



Caespitose, about an inch long, usually of yellowish green 

 color, or in younger condition, deeper blue green ; in dried 

 state olive-gray to deep violet purple ; filaments much 

 branched with the branches mostly straight and elongate; 

 fertile branches very short ; articulations 3-6 times longer 

 than broad. Spores single or geminate, few, often distinct, 

 globose, or sometimes slightly oval. 



Diameter of cells, 20 yw, (15-25 ju). 



The plant originally described was from Aiken, South 

 Carolina. Found it in profusion, July, 1879, in pond, Atsion, 

 New Jersey, fringing sticks and rootlets of cypress and 

 other trees extending into the shallow water along the 

 shores ; formed also a thick carpet about ten feet square on 

 the planks of the chute of the outlet of the pond. Since 

 then found it frequent in many localities in New Jersey. 



The vegetative plants are furnished with seta3 (tricho- 

 gynes) usually attached, singly at the base, or 011 the apex 

 of a carpogon. Basal stems are sometimes found with smal- 

 ler filaments entwined around them. 



Plate LXIX, fig. 1. Plants magnified 125 diameters ; figs. 

 2, 3, 4, carpospores fertilized; figs. 5, 6, 7, carpogons with 

 trichogynes attached ; fig. 8, natural size. Fig. 9, an older 

 stem corticulated ; figs. 10, 11, 12, matured carpospores in 

 early stages of development. 



CHANTRANSIA VIOLACEA, Kg. 



Tufts bright violet, short, scarcely two mm long, fila- 

 ments straight, branches more or less erect, ends obtuse ; 

 articulations 3-6 times as long as wide, 8-9 /* thick. Para- 

 sitic on Lemanea and other plants. 



Var. EXPANSA, Wood. 



The author describes this plant as " forming a dark pur- 

 ple, slippery, indefinite stratum on stones ; filaments purple, 

 moderately branched, almost two lines long, together with 

 branches straight, often elongate ; fertile branches short, 

 ascending, joints 3-8 times as long as their diameter, the 



