a new species for which I propose the name Avr. Geppii in honour 

 of the authors of the very valuable monograph. 



In discussing my plant Mr. & Mrs. Gepp write (1. c. p. 41) : 

 »The Avrainvillea spec, of Dr. Borgesen (loc. cit.) we have once 

 seen, but have not had the opportunity of submitting to a sear- 

 ching examination. Judging from Dr. Borgesen's description 

 and figures of the plant, we should suppose it to be a form of 



A. sordid a, unless 

 indeed it be a 

 form of A. asarifolia 

 B0rg.«. 



I cannot agree 

 with this view and 

 shall in the follow- 

 ing give my reasons 

 for this. 



The description 

 given 1. c. p. 36 I 

 shall first of all 

 reprint here with 

 some few additions. 

 The colour of 

 the dried specimen 

 grey-green with a 

 sordid yellow tinge. 

 It has a short verti- 

 cal rhizome covered 

 quite densely with 

 sand and gravel and 

 very like those of 

 e. g. Penicillus and 

 Halimeda. From this short rhizome a slender stipe grows up; 

 this is quite flat in the dried specimen most probably also in the 

 living plant; the length of the stipe is 4^ cm., the breadth only 

 4 mm.. It tapers somewhat upwards and passes rather suddenly 

 into the flabellum. The flabellum is transverse oblong with 

 a broad rounded base, 8 cm. broad, 5 V2 higb? of a rather 

 loose consistency and with a more or less lacerated and lobed 

 margin ; the surface is somewhat uneven and only very indi- 

 stinctly zonate. The flabellum is very thin especially in the parts 

 near the periphery. 



Filaments in the interior of flabellum cylindric or some- 



Fig. 72. Avrainvillea Geppii Borgs. 



a—e, parts of filaments; /, chromatophores. 



{a and /, about 170:1; h, c, d, e, 70:1). 



