18 AKT. 3 -K. YENDO : 



Cheilosporum, (Arescb.) Schmitz. 

 1. Cheilosporum anceps, (Kütz). 



ri. IL fig. (5-<S : Fl. Vr. fig. '2. 



Fronde tenuiore, gracile, basi tereti, mox compresso-complanata, 

 substipitata, densissime di-trichotoma ; articulis omnibus subcostatis, 

 infimis cylindraceis diametro 0.5-1.0 mm., mediis eramiferis sciiti- 

 formibus vel obcordatis, superioribus ramulorumque linearibus vel 

 obcordatis vel sagittatis, lobis saepe laxe prominentibus ; conceptaculis 

 in apicibiis vel mediis loborum tumescentibus ; geniculis brevissimis. 

 Corallina anceps. Kütz. Phyc. Gen. p. 388. 

 Id : Tab. Phyc. Taf. Q2. fig. I. 

 Id : Spec. Alg. p. 708. 



The articuli in this species are highly variable in their form and 

 size ; those of the branches as well as the upper portions are generally 

 linear, measuring 0.5-1.0 mm. in breadth and 5.0-7.5 mm. in 

 length ; those of the middle portion, cordate, reniforme or sagittate. 

 The lobes of the sao-ittate articuli sometimes attain io 1. cm in lenofth, 

 very often giving rise to long branchlets at their apexes. The apical 

 articuli are very small, cylindrical, linear or obovate in the shape. 

 We have in many cases small protuberances at the top of the superior 

 articuli and not seldom of the middle portion. These are abnormal 

 decussate branches and may develope into the branches with cordate 

 or sagittate articuli. Although the articuli are thus variable in the 

 form, every lower end of them is always pointed, leaving a narrow 

 space to admit the small geniculum. So the movement of tlie articuli 

 is slightly restrained and the whole frond is extremely delicate. 



