BrP nN Dix: 
DESCRIPTION OF PLATE LX. 
[FRoM DAvENpoRT’s MONOGRAPH ON THE VERNATION IN BOTRYCHIA, 
IN TORREY BOTANICAL BULLETIN, VOL. VI, JANUARY, 1878.] 
VERNATION IN BOTRYCHIA. 
I. VERNATION WHOLLY STRAIGHT: 
1. B. simplex, Hitchcock. Bud smooth. Apex of 
fertile and sterile frond erect. Figure 3. 
2. VERNATION PARTLY INCLINED, in one or both portions. 
1. &.-Lunaria, Swartz. Bud smooth. Apex only. 
of sterile frond bent over and outside of the nearly 
straight fertile frond. Segments of sterile frond ar- 
ranged nearly perpendicularly. Figure 4. 
2. B. boreale, Milde. Bud smooth. Apex of sterile 
frond bent over inside of the nearly erect fertile frond. 
Sterile segments arranged on an angle. Figure 5. 
3. B. matricariefolium, A. Br. Bud smooth. Apex 
of both fronds turned down. Sterile frond clasping the 
fertile, with its apex overlapping the whole. Figure 6. 
4. B. ternatum, Swartz. Bud pilose. Apex of both 
fronds bent down, with a slight curve inward. Fig- 
ures 8 and 9. 
3. VERNATION WHOLLY INCLINED, in the fertile frond re- 
curved. 
1. B. lanceolatum, Angstrom. Bud smooth.  Fer- 
tile frond recurved its whole length, the shorter sterile 
frond reclined upon it. Figure 7. 
2. B. Virginianum, Swartz. Bud pilose. Fertile 
frond recurved its whole length with the longer sterile 
frond reclined upon it. Figure ro. 
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