A new Species of Laurencia front CMle described by De Toni, 

 Forti and Howe : LAURENCIA CHILENSIS, sp. nov. ''' 



Frond terete, filiform, sordid yellowish-brown, cartilaginous 

 for subcorneus, 5-10 cm. or more high, subdichotomous belovv, 



the main branches 

 0.7-1. 1 mm. in diame- 

 ter, narrowly virgate 

 with patent or erecto- 

 patent ramuh; ultima- 

 te ramuli irregularly 

 disposed and usually 

 rather sparse , cyHn- 

 dric, cylindric-capita- 

 te, pestle-shaped, py- 

 riform, or subturbina- 

 te, mostly 0.6-2.2 mm. 

 long, 0.3 - 0.9 mm. 

 broad at the abruptly 

 truncate, often swol- 

 len apex, often proli- 

 ferating from the mar- 

 gins of the apical en- 

 largement or from the 

 centrai pit, sometimes 

 with several prolife- 

 rations from a single 

 apex and occasionally 

 Fig. r. - Frond oi Laurencia chilensis, naturai size. with the proliferations 



(1) Cfr. Dk Toni G. B. & Forti A., Contributo alla conoscenza della Hora 

 marina del Chili {Atti del Reale Istituto Veneto di scienze, leti, et artiT.l.Xy.lX, 

 p. 68c) ; Venezia 1920J. 



