182 130 



Louisiana: B. F. Bush nr. 26 (W)- A. B. Langlois nr. 141 (W). 



Texas: B. F. Bush in-. 146(5 (W); Cirtiss ed. Baenitz, Herb. Americ. nr. 860 (Sj; E. Palmer nr. 

 1433 (W). 



While most specimens from the Southern U. S. do not differ materially from 

 the Jamaican type, some of them show a tendency to variation in the direction of 

 D. augescens; they are often of a firmer texture, sometimes even coriaceous, and 

 the lower pinnæ are sometimes slightly narrowed towards the auricied base. This 

 latter character is still more pronounced in the two following varieties. 



var. Harpen n. var. 



Lower pair of pinnæ rather reduced and, like the following pair conspicuously 

 narrowed toward the base, the upper basal segment still not very reduced. Pinnæ 

 incised nearly to rachis, the segments oblique, acute, the edges often revolule. The 

 basal anterior vein only runs to sinus, the posterior one reaching the margin about 

 1 mm above sinus. Sori small, near the edge; indusium subglabrous. 



Georgia: Hawkinsville, Pulaski Co.. R. M. Harper nr. 1382 (type, W); rocky bank of Chattahonchee 

 River, Clay Co., Harper nr. 1788 (W); near Albany, Douglierty Co., Pollard and Maxon 

 nr. 531 (W). 



var. Lindheimeri A. Br. pro specie sub Aspidio, ms. in Herb. Berol. 



Intermediate between typical D. normalis and D. augescens, and some speci- 

 mens could as well be referred to the latter. It differs from D. normalis type by 

 the firmer texture, the more distant and often opposite pinnæ, the lower ones 

 scarcely reduced bul distinctly narrowed towards their base as in the preceding 

 variety and in D. augescens; segments acute, often subfalcate; veins generally some- 

 what prominent beneath, the Iwo lower ones meeting at sinus; sori near to the 

 edge; in some specimens some few small scales are found on the costæ beneath, 

 quite as in D. augescens, from which species it differs by its broader pinnæ and by 

 its lamina not being so abruptly narrowed upwards. 



Texas: F. Lindheimer nr. 742 (B, type, W), 1276 (H); Houston, E. Hall nr. 855 (W); near Kerrville, 

 V. Bailey nr. 470 (W); near moutli of Pecos River, V. Havard (W); San Antonio, Bexar 

 Co., A. A. Heller nr. 1835 (Wl; near Laredo, E. Palmer nr. 1432 (W) ; Edwards Co., 

 R. .1. Hill nr. 41 (W). 



193. Dryopteris augescens (Link) C. Chr. comb. nov. 



Syn. Aspidium augescens Link, Fil. sp. 103, 1841; Kze. Farrnkr. 134 tab. 59; 

 Metl. Fil. Lips. 91. 



Originally described after plants cultivated in the Botanical Garden ot Berlin 

 and raised from spores of plants collected by E. Otto in Cuba; Link says "Cara- 

 cas" and Mettenius "Mexico", but Otto's original specimens are from Cuba: auf 

 Felsen, Via Tumbadero nr. 89 (B!), with which Link's original specimens exactly 

 agree like several other specimens from Cuba. 



