NEW OB CRITICAL BRITISH MARINE ALG^E. 433 



branches outer spathe-valves. A very distinct species. The flowers 

 are milky white, with a tinge of bkie and violet. 



60. Urginea virens, sp. n. Gracilis, erecta, 10-20 cm, alta ; 

 bulbo ovoideo, 2-3 cm. longo ; foliis sub anthesi nullis vel jam 

 emarcidis, linearibus carnosulis, glabris, scapo brevioribus, c. 2-5 mm. 

 longis ; scapo stricto vel plus minus flexuoso, glaberrimo nudo ; 

 spica subcorymboso-abbreviata pluriflora ; bracteis minutis lauceo- 

 lato-deltoideis patulis, dimidio inferiore calcare deflexo filiformi, 

 c. 2-5 mm. longo oruatis ; pedicellis insequilongis filiformibus, 

 glabris, usque ad 1-5 cm. longis ; perianthio 0-4-0-5 cm. longo, 

 6-foliato, foliolis oblongis obtusis, 1-nerviis, 0-2 cm. latis; staminibus 

 suberectis, filamentis, anguste linearibus, apieem versus attenuatis, 

 glabris, basi foliolorum insertis, 0-2 cm. longis, antheris circuitu 

 subquadrato-rotundatis, basi apiceque excisis, 1*5 mm. longis; 

 ovario ovoideo glabro; stylo subfiliformi apieem perigonii attingente. 



In regioue austro-occidentali : In collibus carrooideis montis 

 "Packhuisberg," in ditione Clanwilliam, "satis frequens," alt. 

 c. 2000 ped., Jan. 1897 ; L. C. Leipohlt. In arenosis moutium 

 pone Tweefontein, in terra Konde Bokkeveld, alt. c. 5500 pad., 

 24 Jan. 1897 ; R. Schlechter, No. 10127. 



My own specimens are not yet so well developed as Mr. Lei- 

 poldt's, but bear now and then a withered leaf or two at the base, 

 thus enabling me to give a better descriptioa than would have been 

 possible with either of them alone. The subumbellate inflorescence 

 and long pedicels are a good mark of our species. The whitish 

 flowers have a green nerve, and are tinged with green outside. 



NEW OR CRITICAL BRITISH MARINE ALG^. 



By E. a. L. Batters, B.A., LL.B., F.L.S.* 



During the last twelve months the British marine algal Flora 

 has been enriched by the addition of several new species, the most 

 important of which are recorded below. In the Bulletin de I'llcrbier 

 Buissier for August, M. Chodat has described two new perforating 

 algae from the Isle of Man. Some new species are to be found in 

 the recently published fasciculus ix. of Mr. Holmes's important 

 AlgcB BritanniccB rariores exsiccatte. From Mr. Geo. Brebner I have 

 received some very interesting specimens, amongst them several 

 undescribed species. A few more species must be added to this 

 list as the result of my own collecting. < 



Myxophyce^. 



1. Aphanothece PALLIDA Rabcuh. Flor. Furop. Ahj. vol. ii. p. 64. 

 Specimens of this species, collected at Weymouth, have been dis- 

 tributed by Mr. Holmes in his AI<j(b exsiccatcB. 



* See Journ. Bot. 1895, 274-6 ; 1896, 6-11, 381-390. 

 Journal of Botany.— Vol. 35. [Nov, 1897.] 2 f 



