LOMARIA. 39 



fertile near the costu, receptacle thick-nerved {nervato),u\du- 

 sia at the maturity of the capsules lacerated, sporangia very 

 laroje ovate, annulus very thick with 18-20 joints, spores ovoid 

 thick." Fee, Gen. Fil. p. 71. 



Hal). Island of Bourbon, Montbrison. — " Filix erecta, magna, ovata, robusta," 

 Fee. 



53. L. acrodonta, Fee ; " sterile fronds oval, petiole smooth 

 fulvescent clothed at the base with large lanceolate scales, 

 rachis depressed deeply furrowed, frondules lanceolate acu- 

 minate toothed oidy at the sumnnt rounded at the base and 

 rather long-petioled spreading cartilaginous with close veins 

 and a scaly costa, sterile fronds with a very robust and fur- 

 rowed rachis, frondules very long straight erect, pinnules 

 sharp twisted [contournees) at the summit clothed with 

 scales of which one-half (in the dried state) are plaited." 

 Fee, Sine. Mem. des Foug. p. 70. 



Hab. Mexico, at Huatusco and Totutla, IV. Schaffner, n. 102 (1854).— " Rap- 

 pelle un peu le L. striata, S\v.," Fee. 



***** Sterile and fertile fronds bipinnate, or pinnate ivith pinna deeply 

 pinnatifid. 



54. L. volubilis. Hook. ; caudex . . . ? stipes . . . ? fronds 

 20 feet long twining bipinnate, pinnte deltoideo-cordate very 

 distant and as well as the pinnules petiolate ; sterile pinnee 

 with 3-9 pinnules of which the terminal one is rather the 

 largest and also petiolate, all of them 4-6 inches long 1-1^ 

 inch in diameter subopposite oblong submembranaceous ob- 

 tuse at the base sharply acuminate serrated only at the apex 

 horizontal, veins very numerous simple or forked forming 

 delicate transverse lines which unite Avith the slightly thick- 

 ened margin, petiole inarticulate, fertile pinnie with fewer 

 pinnules (2-5) equally petiolate elongated narrow-linear fal- 

 cate acuminate 6-14 inches long 3-nerved on the back, to 

 the 2 outer nerves near the costa the involucre is attached, 

 dark-brown membranaceous soon breaking transversely into 

 segments, the sori spreading, rachises furrowed above twining 

 round each other scarcely so thick as a goose-quill stramineous 

 glossy free from scales as is the whole frond. (Tab. CL.) 



Ilal). Barra do Rio Negro, tributary to the Amazon, in thickets by streams, 

 climl)iiig to the height of 20 feet, R. Spruce, n. 1203.— This is certainly tlie 

 most remarkable of the genus Lomaria which it is my privilege to describe, 

 with much the habit of Blechnum (Salpichla^na) volubile. Kit's. There arc species 

 of LomarifB with scandent caudices or rhizomes which measure 20-25 feet, hut 



