266 _ EXPLANATION OF THE PLATES, 
PLATE THE NINETEENTH. 
Filices and Lycopodiacee. 
Fig. 1. Lycopodium. Lycopodiacee. Part of a branch 
magnified; leaves oblong, linear, much compressed, two- 
‘rowed; stipules single, lanceolate; one-sided, tiledlike. 
a. Capsular conceptacles, with bractez. asi 
i. Another kind of capsular conceptacles, with bracteze. 
Fig.2. The second kind of conceptacle, much magnified; 
three-lcbed, two-valved, three-seeded. 
Fig. 3. A seminule taken out of these conceptacles, and 
much magnified. 
Fig. 4. ‘The same opened. 
a. The lorica. 
b. The kernel. 
Fig. 5. The first kind of conceptacles much magnified ; 
kidneyshape, two-valved, many-seeded. 
a. ‘The seminules. 
b. The same, very much magnified, to show they are 
angular. 
Fig. 6. Bernhardia dichotoma. Lycopodiacee. A capsu- 
lar conceptacle magnified, three-lobed, three-valved, par- 
titions median. 
Fig. 7. A branch of the same plant magnified. 
a. Capsular conceptacles, with two bractez. 
Fig. 8. a. Seminules magnified. 
b. The same, very much magnified, to show they are 
~ angular. 
Fig. 9. Tmesepteris Tannensis. Lycopodiacee. Concep- 
tacle magnified, capsular, opening, 2-valved, 2-celled; with 
one of the two leaves between which it was placed. 
Fig. 10. Lycopodium umbrosum. Lycopodiacee. Con- 
ceptacle magnified, capsular, kidneyshape, 2-valved, many- 
seeded. 
a. Seminules. 
Fig. 11. The same very much magnified to show that 
they are angular, and collected together by threes or fours 
into globules. 
Fig. 12. Equisetum palustre. Equisetacee. Spike mag- 
nified, with the terminal ament. 
a. Involucra. 
b. Conceptacles attached to the under side of the invo- 
luera. 
Fig. 13. A seed? of the same much magnified, with the 
hygrometrical threads. 
