182 130 
Louisiana: B. F. Busu nr. 26 (W): A. B. LaNaGLors nr. 141 (W). 
Texas: B. F. BusH nr. 1466 (W); Curtiss ed. Barnirz, Herb. Americ. nr. 860 (S); 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 pinne are sometimes slightly narrowed towards the auricled base. This 
latter character is still more pronounced in the two following varieties. 
var. Harperi n. var. 
Lower pair of pinnz rather reduced and, like the following pair conspicuously 
narrowed toward the base, the upper basal segment still not very reduced. Pinnz 
incised nearly to rachis, the segments oblique, acute, the edges often revolute. 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 Chattahoochee 
River, Clay Co., Harper nr. 1788 (W); near Albany, Dougherty Co., PortARpD 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 pinnae, the lower ones 
scarcely reduced but 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 two lower ones meeting at sinus; sori near to the 
edge; in some specimens some few small scales are found on the coste beneath, 
quite as in D. augescens, from which species it differs by its broader pinnz and by 
its lamina not being so abruptly narrowed upwards. 
Texas: F. LiNDHEIMER nr. 742 (B, type, W), 1276 (H); Houston, E. Harr nr. 855 (W); near Kerrville, 
V. Baitey nr. 470 (W); near mouth of Pecos River, V. Hayarp (W); San Antonio, Bexar 
Co. A. A. HELLER nr. 1835 (W); near Laredo, E. ParMER nr. 1432 (W); Edwards Co., 
R. J. Hinr nr. 41 (W). 
193. Dryopteris augescens (Link) C. Chr. comb. nov. 
Syn. Aspidium augescens Link, Fil. sp. 103, 1841; Kze. Farrnkr. 134 tab. 59; 
Mett. Fil. Lips. 91. 
Originally described after plants cultivated in the Botanical Garden of Berlin 
and raised from spores of plants collected by E. Orro in Cuba; Link says “Cara- 
cas" and MrrTENIUS “Mexico”, but Orro'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. 
