10 Order OPHIOGLOSSALES 
Class EUSPORANGIATA. 
OPHIOGLOSSALES. 
1. OPHIOGLOSSACE. 
1. Ophioglossum. 2. 
1. Ophioglossum vulgatum L. Common Adder’s-tongue. 
Spreads by forming buds on the roots, prothallia rarely present. A 
colony of this plant was found in a wet, peaty meadow along Snake 
ereek in Cherry county, 40 miles southwest of Valentine, by Rev. 
J. M. Bates. 
2. Botrychium. 2. 
Grape Ferns. 
The bud for the next year’s plant is enclosed in or by the side of 
the base of the leaf-stalk, and plants should be dug to include this. 
Sterile and fertile parts distinct from the ground up; sterile part 
long-stalked; bud pilose. 1. B. obliquum. 
Sterile and fertile parts with a common stalk for some distance 
above the ground. 
Sterile part of leaf short-stalked, not ternately compound; bud 
glabrous. 2. B. neglectum. 
Sterile part of leaf sessile on the common stalk, blade ternately 
compound; bud hairy. 3. B. virginianum. 
1. Botrychium obliquum Muhl. 
An incomplete specimen from Franklin may belong here. 
2. Botrychium neglectum A. Wood. 
Nebraska according to Britton & Brown. The above specimen has 
been placed here. © 
3. Botrychium virginianum (L.) Sw. Rattlesnake Fern. 
Common in moist rich soil in the southeastern part of the state and 
in favorable places along streams across the state. Bellevue; Bel- 
mont; Florence: Halsey: Lincoln; Monroe and Squaw canyon in 
Sioux county; Plummer Ford; Weeping Water. 
ISOETALES. 
1. ISOETACEZ. 
3. Isoetes 27. 
1. Isoetes melanopoda J. Gay. Quillwort. 
Collected north of Exeter by Dr. J. H. Wibbe. A species of Isoetes 
was found by Dr. J. H. Powers near Crete. 
Class LEPTOSPORANGIATZE 
FILICALES. 
1. OSMUNDACE2., 
4. Osmunda. 4. 
1. Osmunda regalis L. Royal Fern. 
Osmunda spectabilis Willd. 
In wet soils in ravines near Franklin. 
