Broadhurst: Struthiopteris in North America 365 



The incomplete description given above is a translation of the 

 original by Kunze, changed only as to measurements to include some 

 smaller but mature fronds in the Delessert Herbarium at Geneva. 

 Siebold's specimen seen there bears Kunze's name and is evidently 

 a cotype of L. danaeacea. Chnstensen makes L. deflexa Liebm. 

 a synonym of danaeacea; this it certainly is not, as deflexa is 

 described as having numerous sterile pinnae. The validity of 

 Lomaria deflexa itself might well be questioned, as no type speci- 

 men is indicated, and it is founded on a single sterile leaf (a not 

 uncommon practice with Liebmann). 



14. S. falciformis (Liebm.) Broadh. comb. nov. 



Lomaria falciformis Liebm. Vid. Selsk. Skr. V. 1: 234. 1849. 



Blechnum falciforme C. Chr. Ind. Fil. 154. 1905. 



Plants terrestrial. Rhizome (not seen), the scales lanceolate 

 to ovate-lanceolate, 1-3 cm. long. Sterile fronds 70-150 cm. long; 

 stipes 30-80 cm. long, often angulate, straw-colored to yellowish 

 or reddish brown, varying greatly in the number and in the color 

 of the deciduous scales, which range from straw, tan, and fawn to 

 red-ochre; lamina 35-76 cm. long, 18-32 cm. wide, oblong, abruptly 

 reduced at the base (type A, without vestigial pinnae), gradually 

 reduced at the apex, the scales of the rachis like those of the stipe 

 or darker; pinnae 18-32-jugate, linear or lanceolate, falcate to 

 straight, the lower ones more curved than the upper, the apex 

 acuminate, abruptly so in the widest forms, the base unequally 

 and usually decidedly cordate, the lower pinnae distinctly petioled, 

 12-23 cm. long, 1.4-2.5 cm. wide; margins never revolute, finely, 

 sharply, and regularly cartilaginously toothed, the teeth usually 

 slanting forward, sometimes incurved; leaf tissue membranous to 

 herbaceous; veins distinct, at least below, not heavy (often appear- 

 ing as delicate dark lines), the vein spaces 1 2-1 5 to 1 cm. (9-12 

 in one very young frond and also in a single pinna, both determined 

 by Liebmann). Sporophyls (incomplete) at least 65-80 cm. long; 

 lamina 36-40 cm. long; pinnae 11-22 cm. long, 4-5 mm. wide, 

 with a sterile apex 3-12 mm. long, the base cordate, usually 

 petioled; sporangia dark brown; indusium lacerate. 



Type: Cotypes (?) U. S. National Herbarium no. 474921 (an 

 immature frond determined by Liebmann), "ad rivulos, Cliiu- 

 aiitla,"* Mexico, May, 1841. Berlin herbarium (single pinna now 

 in the New York Botanical Garden herbarium) Liebmann 135, 



* Elsewhere spelled Chiuautata and Chiautla. 



