OF CEETACKOUS PLANTS. 255 



Algites furcatus (Brongn.), comb. nov. 

 [Plate I, fig. 1 a.] 



]824. Fuceidea (Sphcerococcusf) furcatus, Bronguiart, Observations 



sur Fiicoides, p. 309, pi. xix, fig. 3. 

 1828. Fncoides furcatus, Brongniart, Hist. V^get. Foss., p. 62, 



pi. V, flg. 1. 

 ]828. Fucoides furcatus, Bronguiavt, Prodrome, p. 20. 

 1838. Chondrites furcatus, Sternberg, Versuch Flora Vorwelt, p. 27. 

 1858. Chondrites furcatus (some varieties), Fischer-Ooster, Fossilen 



Fiiooiden, p. 51, pis. ix-x. 

 1863. Chondrites affinis Sf C. genuinus, EttingsLausen, Foss. Algen 



Wiener Karpatlr.-Sandst., pp. 460, 465. 

 1869. Clicndrides furcatus, Schimper, Traits Pal^ont. V(5get.,Tol. 1, 



p. 169, pi. iii', fig. 8. 

 1890. Phycopsis affinis, Rothpletz, Zeitschr. deutsch. geol. Ges., 



vol. 48, p. 885, pi. xxii, figs. 1, 2. 



Ahjltes with tballus branching alternately, the side branches 

 averaging 3 mm. in width and with rounded ends, springing 

 from a larger branch 4-7 mm. in diameter. The main branches 

 are characterised by dichotomous division, and the ultimate 

 branches are sympodial. 



HoEizoK". — Cretaceous — Flysch. 



Locality. — Switzerland and other mid-European countries. 



Kothpletz states that it is the fucoid with the widest thallus 

 among those of the Flysch deposits. It appears to me to be one 

 of the best established of the doubtful group. 



53020. A branching thallus showing some of the ultimate 

 ramifications with their rounded ends, illustrated in 

 PI. I, flg. 1 a, with Chondrites intricaius. Cretaceous 

 Flysch ; Sievering. Ettingshausen Coll., 1879. 



Algites sp. 

 41410. Very obscure markings on a block of white chalk, which 

 may possibly be fucoidal impressions. Upper Chalk ; 

 Charlton, Kent. Purchased, 1863. 



Algites ? 



V. 3947. Unidentifiable fragments of plant tissue in a mass 

 together. On sandstone. They may, however, be 

 macerated fragments of higher plants. Senonian ; 

 Baumberg, Westphalia. Purchased, 1899. 



