PINUS AYACAHUITE
iDENTiriCATiON.-I'lNUS AYACAHUITE, C. Elirenberg; Schlechtendal in Z W a , xii. p. 492 (1838); Loudon, EncyU. of Trus, p. 1023
(1842); Spach, //ÙI. Nat. Vtget. Pkauer., xi, p, 4 (1842); Antoine, Coni/., p, 47 (1846); Endlicher, Syn. Con-f..
p. 149 (1847); Knight, jr^«. Com/., f. 34 (1850); Lindley and Gordon, Hort. Soc. v, p. 215 (1850): Carrière.
Traüé Gén. dei Conif, p. 30Ö (1855); Gordon, Pinelum, p, 216 (1858) ; and ed, 2, p. 292 ; Henkel and HochstMter,
Synop. d. Nad4tA. p, 96 (1865) ; Parlatore in D. C. Prod., xvi. 2, p, 406 (1868) ; Engelmann, Revision of Genui Piiw.
p- 15 {1880) ; Veitch, Manual of Coai/era, p. 176 (1881) ; Masters in Gard. Chron. (October 14, 1882),
PINUS STROBILI FORM IS, Wislizenus,
E SG RA V I N O S , — L o u d o n , Encycl. of Trees, f, 1919-1921. Cones, dfi-,—Masters, Gard. Chron. (October 14, 1882),
Specific Character.—P. foliis quinis filiform!bus; strobilis cylindrato-conico-acutis pra;iongis, squamarum
apophysi dimidiate pyramidata acuminata, in strobilis maturioribus versus basin apice plus minusve
recurva umbone terminal! obtuso.
Habitat in Mexico, montibus provinciarum, Chiapa et Oaxaca.
A tree reaching 100 feet in lieight: in youth not imlike Pinus excelsa. Branchlets devoid of leaves
at the base, and clothed with a ferruginous pubescence, which soon disappears. Bark of the trunk of a
dull green or leaden greyish hue, smooth in the young trees, and when older rough with the pulvinuli of
the fallen leaves. Buds short, peaked at the apex and swollen behind, clothcd with short linear triangular
scalcs, which are afterwards reflexed and fall off. Leaves in fives (see fig, on plate), triquetral, 3 or 4 inches
long, turned back, narrow, weak, and lank, scarcely exceeding the third part of a line in breadth; point
acute and tapering, with no lines of stomata on the back; with from three to six rows on each side of
the inner face; the margins both of the sides and keel vcr>' minutely serrulate. The rcsin canals are
peripheral and surrounded by hypoderm cells (in a specimen grown at Cheshunt), though Engelmann
says there are no such fibres around the ducts. Sheath of the leaves composed of scales nearly an
inch long, soon falling off, Male flowers not observed. Cones pendent (see plate), very long (9 to 12
inches), usually curved, narrow, cylindrical in the middle, but attenuated at both ends, apex pointed.
Scales, when mature, fully 2 inches in length (see plate), often grooved longitudinally, almost of a corky
substance, apophysis greyish-white, forming a strong contrast with the part of the scale not exposed to the
light, which is dark umber-brown, with a pyramidate apex and a small brownish umbo. The apex in the
older cones is sometimes reflexed, more especially in the sterile scales towanls the base. The plate shews
the scale of a mature cone. Seeds winged (see plate), small for the size of the cone (about 2 lines long),
obovate, testaceous, brown, oftcn marked longitudinally widi darker Hnes, The wing (see plate) is about
an inch long, and about 5 lines at its broadest part, obliquely truncate, of the same colour as the seed, with
darker longitudinal stripes or lines. Cotyledons twelve.
Mr, Gordon says {Pinetiim, Supplement to ed. i, p. 72), that among the Pines introduced by M, RoezI
there were Ayacahuitcs—one the white and the other the red; that the \oxmzx, Pinus Ayacahuite
Manco—which from his reference we presume to be meant by him for this species—is the same as Roezl's
P. Bonapartea, and that his P. AyacaJmile Colorado is P. Loudoniana, Gordon. Whether these synonyms
be correct or not, neither of them appears to us to belong to this species, so far as we can judge from the
materials we have seen. Mn Gordon's opinion is given after the inspection of Roezl's specimens in the
hands of Mr. Standish. We also have seen a set of specimens of Roezl's species, purchased in Mexico
R4OJ A FROM
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