NO. 8 FERNS FROM SOUTH AMERICA MAXON 3 



ADIANTUM GLANDULIFERUM Link 



Chile: Near Valparaiso, near sea-level (19125). Vicinity of 

 Choapa, alt. 235 meters (19220). Between La Ligua and Los 

 Molles, Province of Aconcagua, alt. about 100 meters (19394). 



ADIANTUM ORBIGNYANUM Mett. 

 Peru: Vicinity of Oroya, alt. 3,700 meters (18700). 



ADIANTUM SCABRUM Kaulf. 

 Chile : Vicinity of Choapa, alt. 235 meters (19512). 



CHEILANTHES ORNATISSIMA Maxon, sp. nov. 



Rhizome multicipital or usually single, erect, woody, bulbiform, 

 1 to 1.5 cm. high, 1 to 2 cm. in diameter, densely paleaceous, the 

 scales erect, very closely tufted, fulvous to castaneous, 5 to 10 mm. 

 long, mostly less than 0.3 mm. broad at the base, nearly capillary (the 

 cells long and extremely narrow, attenuate, the walls nearly hyaline) , 

 slightly tortuous, with a few distant, minute, mainly antrorse teeth. 

 Fronds numerous, cespitose, erect or ascending, mostly arcuate, 8 to 

 16 cm. long, very densely paleaceous ; stipes 1 to 4 cm. long, 1.3 to 

 1.8 mm. in diameter, brown and sublustrous beneath a dense persist- 

 ent covering of imbricate scales similar to those of the under side of 

 the lamina ; lamina linear to oblong-lanceolate, 6 to 14 cm. long, 

 1.5 to 6 cm. broad, exactly tripinnate, long-acuminate ; pinnae 15 to 20 

 pairs, mostly imbricate, the larger ones 3 to 4 cm. long, 7 to 12 mm. 

 broad, oblong to linear-oblong from a slightly broader base, obtuse 

 or acutish, sessile, spreading or upwardly falcate, the lower sur- 

 face wholly obscured by a dense covering of very large, widely 

 imbricate, brownish-centered scales, the broad, diaphanous, whitish 

 borders irregularly denticulate-ciliate to copiously lacerate-filamen- 

 tose, the tangled capillary divisions recurved, mostly extending 

 between the segments to the upper surface of the lamina and nearly 

 covering it ; pinnules 6 to 9 pairs in the larger pinnse, approximate, 

 broadly oblong, pinnate, the 2 or 3 pairs of segments distant, minute, 

 sub-globose, crenately lobed, conspicuously revolute, the minute f ew- 

 sporangiate sori borne on the back of the lobes at the wholly 

 unchanged margin ; sporangia glabrous ; spores triplanate, closely 

 tuberculate. 



Type in the U. S. National Herbarium, no. 515998, collected in 

 the high mountains back of Lima, Peru, March, 1892, by William E. 



