294!. Scientific Proceedings, Royal Dublin Society. 



Pabasites 



alphabetically arranged, witli periods of 

 duration, times of fructification, &c. 



Host Plants 



in the order of frequency, with periods 

 of duration. 



Fucus vesiculosus. 

 Perennial. Fruit, January to Aug. 



Laminaria saccharina. 



Perennial. Fruit, Summer and 

 Autumn. 



Leathesia tuberiformia. 



May to October. ("Summer." 

 Crouan and Le Jolts.) Often on 

 rocks. 



Lito siphon laminarise. 



June to October. Fruit in August. 



Litosiphon pusillus. 



Summer annual. Very rare in 

 Frith of Forth. 



* Melobesia pustulata. 



Perennial. ("Fruit in Autumn," 

 Crouan.) 



Mesogloia virescens. 



May to September. Fruit, August 

 and September. Nearly always 

 on rocks. 



Myriotrichia filiformis and clavse- 

 formis. 



May — August. (" Spring," Le 

 jolis and Crouan.') 



Myrionema strangulans 

 April to August. («' Summer," 

 Crouan.) 



Cladostephus spongiosus. Perennial. 



,, distichus, rarely. Do. 



Chsetopteris plumosa, ,, Do. 

 Chondrus crispus, „ Do. 



Chsetopteris pulmosa, rarely. Peren- 

 nial. 



Schizymenia edulis, very rarely at 

 Island of Inchcolm. Perennial. 



Corallina officinalis. Perennial. 

 Cladophora rupestris. All the year. 

 Halidrys siliquosa. Perennial. 

 Asperococcus echinatus. April to 



October. 

 Laurencia hybrida. All the year. 

 Pol. nigrescens. Perennial. 



„ elongata, rarely. Do. 



Himanthalia lorea, rarely. Do. 

 Cladophora laetevirens, rarely. March 



to December, or later. 



Alaria esculenta. Perennial. 



Chorda filum. April to December. 



Chondrus crispus. Perennial. 

 Gigartina mamillosa. Do. 

 Himanthalia lorea. Do. 



Laurencia hybrida. All the year 



Asperococcus echinatus. April to Oc- 

 tober. 



Cladophora rupestris. All the year. 



Chorda lomentaria, rarely. March 

 to November. 



Enteromorpha compressa. At all sea- 

 sons. 



