26 



GRAF ZU SOLMS-LAUBACH— MONOGEAPH OF THE ACETABULARIE^. 



Rab. Shores of St. Thomas (Antilles) : Herb. BeroL, ex herb. Mertens et Sulir. 1 

 have seen in the Vienna Museum a plant from Jamaica, Priedrichstbal, with only three 

 oblique hair-scars. 



This plant, nearly allied to A, caralblca, is clearly distinguished by the shape 

 of the apices of the sporangial rays and by the greater number of scars on the 

 coronal segments found on all the specimens I was able to examine. Though 

 A. crennlata and A. caraihica exhibit in the decalcified state a separation of the 

 individual rays up to the base, this is here more markedly the case, Suhr appears to have 

 observed this, since he has actually determined one of his specimens as '' Poh/ph/sa." 



I have seen in the British Museum a plant from Ceylon very like A. Suhrii, at most 

 differing only slightly in shape and in a greater arching out of the upper corona 

 segments. It was collected by H. Trimen on shallow sandy places on 7th February, 

 1890, at Nakativanturai, near Jaffna, and noted by him as equal to 153 of the Ferguson 

 collection. Owing to the scanty material, a more definite determination of its relationship 

 is not possible. 



II. Segments of the corona superior witli two hair- insertions. Kays even in the 



living state separate and free. 



9. AcETABTiLAEiA Calyculus, Quoy et Gaimard, in Freycinet, Toy. * Uranie ' et ' Physi- 

 cienne,' Zool. t. 90. figs. 6, 7. — Harv. Phyc. Austr. vol. i. pi. 21. 

 Of intermediate size, with a delicate terminal cap on a longish stalk ; stalk with spindle- 

 shaped sw^ellings bearing hair-scars. Disc delicately basin-shaped in consequence of the 

 curving upwards of all the rays, w^hich are not very numerous (22-25). These are scarcely 

 if at all calcified, and separate and free from each other to the lowest basal portion, bearing 

 the coronal segments, and each springing from a small protuberance of the central area ; 

 sporangial rays closed towards the basal portion, compressed from the tip downwards, 

 deeply emarginate, scolloped ; segments of both coronse free, remote from each other, 

 blunt, those of the upper externally almost triangular, with two hair-insertions one 

 behind the other, or sometimes three, when they are triangular in arrangement with the 

 point directed inwards. Spores globular. 



Size : diam. of cap about 4 mm. ; breadth of corona superior 0*11 mm. (Plate III. 

 figs. 6, 7, 8, 10.) 



Mah. Australia: Bale des Chiens marins. West Austr. (Qtioy et Gaimard); Owen's 

 Anchorage, Fremantle, West Austr. {Clifton Me Sarvey, Hb. Dubl.); Fremantle, Bower- 

 bank coll. Br. Mus. (specimina in spiritu vini cons.) ; Deception Bay, Queensland, coll. 

 Th. L. Bancroft (Askenasy). 



The original specimens of this species appear to be no longer in the Paris Museum ; 

 I have not seen the Harveyan originals, but the specimens in the British Museum from 

 the same locality, which I examined, corresponded so exactly to his description and 

 figure that all doubt of their identity may be excluded. Harvey's plate renders the 

 habit of the plant most strikingly. At the first sight of the spirit-specimens in the British 

 Museum I took them to be Polyphysa Cliftoni, Harv., on account of the entirely free rays 

 of the cap, and was accordingly much astonished when I recognized the corona inferior 



