176 Linnean Society. [June 6, 



squamis radiorum superioribus quadratis : inferioribus trilobatis : late- 

 ralibus 3-spiniferis ; spinis brevissimis linearibus simplicibus. 



A. neglecta, Forbes. 



A. disco squamis central ibus parvisrosulatis, scutellis oblongis conjunctis, 

 squamis radiorum superioribus quadratis : inferioribus oblongis : late- 

 ralibus 4 — 5-spiniferis ; spinis bre^abus simplicibus. 



Ophiura neglecta, Johnslon. 



A. Chiajli, Forbes. 



A. disco squamis minutis rosulatis, scutellis cuneatis divergentibus apici- 

 bus approximatis, squamis i-adiorum superioribus lenticularibus : infe- 

 rioribus quadratis sulcatis : lateralibus 4-spiniferis ; spinis longis sim- 

 plicibus. 



Ophiura filiformis, Chiaje (nee Miiller). 



Lastly, the author adopts the genus Ophiothrix of Miiller and 

 Troschel, with the following revised character : — 



Ophiothrix. 

 Corpus orbiculare, spinosum, ad peripheriam radiatum ; radiis simplicibus, 

 squamosis, squamis superioribus imbricatis, lateralibus carinatis spi- 

 iiiferis; spinis serrulatis; ossiculis ovarialibus parvis, oralibus ad latera 

 nudis ; cirrhis pinnatis. 

 Op/iioihrix Rosula is common in the ^gean Sea. 



Figures are given of all the new genera and species, with nume- 

 rous magnified details. 



Read also a " Description of Peltophyllum, a new genus of Plants 

 allied to Triiiris of Miers, with remarks on their Affinities." By 

 George Gardner, Esq., F.L.S. &c. 



The jjlant described in the present communication was discovered 

 by Mr. Gardner in the pi'ovince of Goyaz, in the interior of Brazil, 

 and the few specimens which he possesses are unfortunately all 

 female. The following are its characters : — 



Peltophyllum, Gardner. 

 Flores dioici. Mase. ignoti. Fcem. Perigonium 6-partitum, coloratura, 



patens, persistens; laciniis ovatis, longe acuminatis ; acumine piano. 



Ovaria plurima, in tori apice sessilia, adpressa, libera. Styli ad apicem 



incrassati, oblique truncati. Fructus ignotus. 

 i^exha. parvula BrasUiensis. Folia a scapo distantia, longe petiolata, pel- 



tata, valde reticulata. Radix tuherosa, fibrosa. Scapus siihramosus, 



bast squamosus ; pedimculis basi bracteatis, tmijloris ; floribus luteis. 

 Peltophyllum luteum, Gardn. Herb. Bras. n. 3570. 



Mr. Gardner compares the female flowers of his plant with those 

 of Triuris, to which it is evidently nearly related ; and discusses at 

 some length the subject of their proper position in the natural system, 



