408 BENEDICT: REVISION OF THE GENUS VITTARIA 
Explanation of plates 15-20 
Unless otherwise noted, t ducti d ifi foll tracin 
of ene aoe and leaves reduced one-half; leaf ‘and stem sections enlarged twelve 
times; scales enlarged about thirty-five times. The sections and scales were drawn 
by means of a camera lucida. 
PLATE 15. VITTARIA GARDNERIANA Fée 
Fic. 1. Whole plant, showing general habit and soriation. 
Fic. 2. Cross-section through leaf in fertile part. 
Fic. 3. Cross-section through petiole, showing 2-angled character. 
Fic, 4. Single broad leaf from another plant, showing venation 
Fic. 5. Cross-section same leaf, showing similarity to V. remota Fée. 
Fic. 6. Cross-section of petiole of same leaf. 
Fic. 7. Cross-section of another leaf through fertile portion. 
Fic. 8. Cross-section of petiole of same leaf. 
F Typical scale. 
ecimens figured: figures 1-6, H. H. Smith 1112, Santa Marta, Colombia 
(this number includes also V. Moritziana Mett.—see plate V, and V. stipitata Kunze— - 
see plate IV, fig. 20); 7-9, Gardner, Organ Mts., Brazil 1837, probably part of type 
collection. 
PLATE 16, VITTARIA REMOTA Fée 
Fic. 1. Whole plant, showing general habit, venation, and soriation. 
2. Cross-section through fertile part of lea 
Fic. 3. Cross-section of leaf just below fertile part. 
- 4. Cross-section of leaf still lower down than preceding. 
5. Cross-section through petiole more than 2 mm. above stem, to show 
i toe character, 
Fic. 6. Cross-section through petiole just after it leaves the stem. The angles 
are not developed at this point, but the single leaf-trace has already given off the 
lateral veinlets. 
Fic. 7. Cross-section through stem, showing origin of petiole—at left—and 
a still soe leaf-trace—at right. A root is shown just leaving the stem at the 
lower si 
Fic. “ Cross-section of a broader leaf through the fertile part, showing that 
the sporangia are borne in a slight depression. 
Fics. 9-12. Cross-sections of same leaf, comparable to those in figs. 4-6, but 
each respectively lower than the € corresponding one in the first series. 
Fics. 13-1 Tracings from leaves showing abnormal modifications in the 
venation. 
Specimens figured: figure 1, P. Wilson 81, Porto Rico; 2-7, L. M. Underwood, 
Jamaica, 1903; 8-12, R. S. Williams 880, Panama; 13-15, from a plant grown at 
the N. Y. Botanical Garden, probably self-sown from Jamaica spores. 
PLATE 17. VITTARIA LATIFOLIA Benedict 
Fic. 1. Whole plant, showing general habit, venation, and soriatio: 
Fic. 2. bra of leaf through fertile part, showing very poe ‘depression 
in which sporangia ar 
Fic. 3. Peseta a leaf below fertile part. 
