378 PINUS ELLIOTTII. 
Our species is closely allied to P. Cubensis (see p. 185), and further study of the latter may pos- 
sibly prove them to be nothing but geographical varieties. Meanwhile the constantly three-leaved 
foliage, the larger number of involucral bracts of the smaller male flowers, the smaller cones with 
smaller, shorter-winged seeds, distinguish P. Cubensis from our species. Of the bark, of the timber, 
or of the behavior of the young cones in this species we know nothing. 
P. Elliottit was imperfectly known to Elliott, and was considered by him a form of P. Tada. 
Later botanists ignored it till Dr. J. H. Mellichamp of Bluffton, S. Car., rediscovered it about ten 
years ago and directed my attention to it. Without his diligent investigations, ample information, 
and copious specimens, this paper could not have been written. At the same time I gratefully 
acknowledge my obligations to many botanical friends in this country and in Europe, an 
- especially to the directors of the botanical gardens and the curators or possessors of the great [189] 
herbaria, who most liberally furnished me with the material to carry on my investigations of 
the Pines and of the Conifers in general. Iam particularly indebted to Messrs. Bolander, Brewer, 
Parry, and Lemmon for their contributions of the Californian and Rocky Mountain Conifers, and to 
Messrs. Canby, Gilman, Ravenel, and Mellichamp for those of the northern and eastern American 
Pines. 
EXPLANATION OF FIGURES. 
Plate I. Fig. 1. A branch, gathered in cao showing two mature cones, of the preceding years, flowering, and three 
young ones of the spring. One-half nat. s 
Fig. 2. Leaves in twos and aes Nat. size. 
Fig. 3. Their close aki. Magn. 60 times. 
Figs. 4-7. Sections of leaves magnified 30 times; 4 and 5 of binate, 6 and 7 of ternate leaves ; the ducts are seen 
closely appressed to the sheath which encloses the vaseular bundles ; these bundles are, as in most pines, 
double, and either separate or closely approximate and almost united ; the ducts are wide or small, few 
e specimens, varying from 4 to 9 
Plate Il. Fig. 8. Male inflorescence, capitate, with the elongated flowers in the axils of fringed bracts. 
Plate I. Fig. 9. One of the aie magn. 3 times, exhibiting the calycoid involucrum. 
Plate II. Fig. 10. A bract, a 
Fig. 11. The janet from the dorsal, and fig. 12 — the ventral side, exhibiting the lowest lateral pair of 
bracts and the succeeding inner and u Magn. 4 times 
Plate I. Fig. 13. Diagram of the involucrum with the sai Si bract ; the 2 tnsta scales are strongly, the 4 next ones 
sl 
ightly 
Figs. 14 and 10 bis, Eiffete anther from above and ~ side, showing the transverse erect crest and one of the longi- 
tudinally opened cells. Magn. 10 tim 
Plate II. Fig. 15. Female aments in bloom, the axis seaes ses already elongating. 
Fig. 16. The same, a little more eta 
Fig. 17. An ament magnified tw 
Fig. 18. A female flower (carpel el in the axil of the broad retuse bract — only the upper, cuspidate half being 
visible, and below the bifid tips of the (rather clumsily executed) ovules — in February. Magn. 10 times. 
Fig. 19. Female aments, six weeks or two months later, recurved. 
Plate I. Fig. 20. One of these, magnified. 
Plate III. Figs. 21-24. Closed cones of different sizes and shapes, showing their variability. 
Fig. 25. Base of an open cone with spreading scales. 
Figs. 26, 27, 28. Scales of a cone. Fig. 26, dorsal view, showing the bract and the apophysis ; fig. 27, view from 
above, exhibiting the — made by the seed and the surface from which the wing had become 
detached ; fig. 28, section of a scale with the seed (exhibiting the embryo) and wing. 
Fig. 29. Seeds from the lower, and, fig. 30, from the upper side, with differently shaped wings ; in fig. 29, the rongh 
under surface of the seed is seen ; fig. 830 shows its upper surface partly denuded of the wing-covering. 
Figs. 31 and 32. Albumen and embryo of different shapes. Magn. 4 times. 
PlateI. Fig. 33. A germinating seed in November. [190] 
Fig. 34. A eek of the following spring, exhibiting the 8 cotyledons, the primary leaves, and upward 
y some pairs of secondary leaves. 
The plates were drawn on stone, from rcapassied ty Mr. Panlus Roetter, late hel eg Eh: who had made himself so favorably 
known, more than twenty years ago, by the b rt of the Mexican Boundary Commission, 
and who has since greatly added to his fame and his uoéfulnens by his artistic ki i nicht Zodlogical Institute in Cambridge. 
