556 
O. nudiwcaule L. fide Davenport, Bull. Torr. Bot. Club, 9: 71. 
1882. 
Plants small, only 2-6 cm. high; rootstock cylindric, tuberous, 
elongated with numerous large roots; leaves 1-2, sheathed at base 
by the old ones of the previous year; petioles entirely subter- 
ranean, 1-2 cm. long; sterile lamina 1-2 cm. long; .4—-.7 mm. 
wide, lanceolate or ovate-acute, rarely obtuse, or apiculate ; fleshy, 
rugose when dry; basal veins 3, median the stronger, lateral ones 
branched; transverse veinlets oblique, forming long narrow 
areolae with few or no free veinlets near the margin; epidermis 
wrinkled, cells flexuous, stomata straight; peduncle arising from 
the base of the sterile lamina, only 5-15 mm. long; spike 5-10— 
mm. long; sporangia 10-15 pairs, apex short; spores .05 mm. 
reticulate, areolae 20-25, rounded, striae unequal, not elevated. 
In grassy, stony spots upon the high mesa near San Diego, 
California, Cleveland and Parry, March and April, 1882; also” 
Mesas near San Diego, C. R. Orcutt, no. 212, March 25, 1882. 
Moist mesas, Lower California, April 10, 1882, C. G. Pringle; near 
Enemada, Mexico, April 10, 1882, M. E. Jones. 
_ In the herbarium of D. C, Eaton there is a specimen collected 
by D. Cleveland, ex Herb. George E. Davenport which is labelled 
O. nudicaule, «« Rediscovered by Dr. C. C. Parry in March, 1882, 
after a lapse of thirty-two years. A specimen in the Torrey Her- 
barium labelled simply “ Ophioglossum Dr. Parry,” is evidently one 
of the original collection, as Dr. Torrey was not living in 1882, 
and his specimens differ from the later collections in age and con- 
dition. Prof. Eaton had one of Dr. Parry’s 1882 specimens, which 
is very interesting, as the sterile frond is bleached and thin, show- 
ing the venation perfectly, and the fertile spike is foliaceous and 
flattened, also bleached and thin, showing the veins and the cells 
from which the sporangia originate, with a flat, apical prolonga- 
tion and immature spores, each with three ridges, radiating like 
spokes, as figured for other species by D. C. Eaton. 
5. OPHIOGLOSsUM ALASKANUM Nn. sp. 
O. vulgatum Eaton, Ferns of N. Am. 2: 261. 1880. ex. p. 
_ Plants 6-12 cm. high; rootstock not seen ; petiole subterranean 
in part, 2-8 cm. long; sterile lamina 2.5-6 cm. long, 2—3.5 cm. 
wide, ovate or ovate-lanceolate, suddenly dilated above the cuneate 
clasping base; apex obtuse or acute, not apiculate; frond thin or 
slightly fleshy, venation distinct ; basal veins 9-11, midvein slightly 
