CO N S P E C TU S . C O N S P E C TU S .
* * Sterile division placed low down on the plant.
5. B . sim p le x , Hitchcock. Plant smooth, fleshy, 2 to 6 inches high; sterile division
short-peiioled, varying from simple and roundish-obovate and 2 to 3 lines long, to triangular
ovate and deeply 3-7-lobed, or even to fully ternate with incised divisions ; segments broadly
obovate-cuneate or somewhat lunate; fertile division i-2-pimiate. — Vol. L, t. xvii., p. 1 2 1 .—
New Bnmswick to C.ilifornia.
6. B . te rn a tum, Swartz. Plant sparsely hairy, fleshy, 4 to 12 inches high ; sterile segment
long-petioled from near the base of the plant, broadly deltoid, ternate and variously decompound;
ultimate segments from roundish-reniform and sub-entire to ovate-lanceolate and doubly
incised; fertile division 2-4-pinnate.— Vol. I., t. xx. and xx''., p. 147. — All North America.
§ 2. OSMUNDOPTERis. Basc o f stalk which encloses the bud open along one side. Sterile
division membranaceous, the cells o f the epidermis flexuous.
7. B. Virg in ian um , Swartz. Plant sparsely hairy, 8 to 24 inches high ; sterile divisions
sessile near the middle of the plant, broadly triangular, ternate ; primary pinnæ short-stalked, 1- 3
times pinnatifid; secondary pinnæ ovate-lanceolate; ultimate segments toothed at the ends;
fertile division 2-4-pinnate. — Vol. I., t. xxxiii., p. 2 5 3 .— New Brunswick to Washington Territory
and Oregon, southward to Florida and Texas.
2. OPHIOGLOSSUM, L.
* Sterile division o f the fro n d entire ; spikes solitary.
1. O. vulgatiam, L. Fronds from a slender root-stock, 2 to 12 inches high, mostly solitary
; sterile segment sessile near the middle, ovate or elliptical, i to 3 inches long; midvein
indistinct or none; veins forming small areoles enclosed in larger ones. — Vol. I I., t. Ixxxi.,
p. 261. — Canada to Arizona; also in Unalaska.
2. O. cro ta lopho ro ide s, Walter. Fronds 2 to 6 inches high, usually several from a
tuberous root-stock; sterile segment set below the middle, cordate-ovate, 6 to 18 lines long, abruptly
contracted into, a short petiole; midvein none, areoles all small.— Vol. II., t. Ixxxi.,
p. 265. South Carolina and Florida to Louisiana.
3. O. nudicaule , L. fil. Fronds r to 6 inches high, usually several from a slightly tuberous
root-stock; sterile segments 5 to 9 lines long, elliptical-ovate, acute at both ends, sub-
sessile near the base of the frond; midvein more or less distinct, areoles all small. — Vol. IL ,
t. Ixxi., p. 267. — South Carolina to Alabama and Florida.
• * Sterile division o f the frondpabnately lobed; spikes several.
4. O. pa lma tum, Plumier. Fronds 4 to 12 inches long, several from a tuberous root-
stock, long-stalked, from a cuneate base broadly expanded upwards and palmately 2 - 1 1-lobed;
lobes tongue-shaped, several inches long; spikes several from near the base of the frond. — Vol.
I I., t. Ixxxi., p. 269. Florida.
A D D E N D U M .
6^. N o tho læn a G ra y i, Davenport. Root-stock short, creeping, covered with rigid nar-
roiv blackish scales ; stalks i Lo 3 inches long, slender, terete, glandular-pubemlent, and, like the
racliises and lower surface of the pinnules, more or less chaffy with delicate lanceolale ciliated
scales ; fronds 2 to 5 inches long, scarcely an inch broad, oblong-lanceolate, pinnate ; pinnæ
rather distant, ovate, or the lower ones deltoid-ovate, but no longer than the others, all pinnately
divided into a few oblong obtuse more or less falcate segments, the lowest ones largest and
somewhat lobed, the rest crenate or entire ; upper surface dotted with whitish glands, lower
surface sprinkled with white ceraceous powder ; margins slightly recurved ; sporangia sub-m:y-
ginal and brownish. — Davenport in Bulletin of Torrey Botan, Club, ined. — Mountains of southeast
Arizona, W. M. Courtis, 1880. Also collected many years ago in Sonora, Mexico, by
A. Schott. Tlie fronds being both chalTy and pulveraceous beneath make it very distinct. It
comes too late for description even in the “ Additions and Corrections ” of this work.
S U M M A R Y .
FlUCES : —
G e n e r a .......................................................................................................... 29
S p e c ie s ............................................................................................................................................138
OpHIOGLOSS.ACEzE : —
G e n e r a ............................................................ . . . ' . 2
Species ................................................................................................................J J
Total, F erns : G e n e r a ......................................................................................3 1
S p e c i e s ........................................................................................................................149