190 CONIFERA. 
1. Pseudotsuga douglasii, Carr. Conif. ed. 2, p. 256. 
Pinus douglasii, Sab. ex Parlat. in DC. Prodr. xvi. 2, p. 480; Hook. Fl. Bor.-Am. ii. p. 162, t. 183. 
Abies douglasii, Lindl. in Penny Cyclop. i. p.32; Forbes, Pinet. Woburn. t. 45 ; Benth. Pl. Hartw. 
p. 57. _ 
Tsuga douglasii, Carr. Conif. ed. 1, p. 192. 
Tsuga lindleyana, Roezl, Cat. Grain. Conif. Mex. p. 8. 
Pseudotsuga lindleyana, Carr. Rev. Hort. 1868, p. 152, cum ie. col. 
Oregon to New Mexico.—MeExico, near Moran (Hartweg, 439), Real del Monte 
(Ehrenberg). Hb. Kew. 
7. ABIES. 
Abies, Juss. Gen. Plant. p. 414, pro parte ; Benth. et Hook. Gen. Plant. i. p. 441. 
About eighteen species widely dispersed in the northern hemisphere, chiefly in 
extratropical mountainous regions. 
1. Abies religiosa, Cham. et Schl. in Linnea, v. p. 77. 
Pinus religiosa, H. B. K., et P. hirtella, H. B. K. Nov. Gen. et Sp. ii. p. 5; Antoine, Conif. p. 75, 
t. 28. fig. 2; Seem. Bot. Voy. ‘ Herald,’ p. 335. 
Abies hirtella, Lindl. in Penny Cyclop. ; Carr. Conif. p. 208. 
Picea hirtella, Loud., et P. religiosa, Loud. Arbor. Brit. iv. p. 2349. | 
Abies glaucescens et A. tlapalcatudo, Roezl, Cat. Grain. Conif. Mex. 1858-59, ex Parlat. in DC. 
Prodr. xvi. 2, p. 420. 
Picea glaucescens, Gord. Pinet. p. 149. 
Norro Mexico, Sierra Madre (Seemann, 1963), region of San Luis Potosi 6000 to 
8000 feet (Parry & Palmer, 847); Sourn Mexico, forest of the Desierto Viejo (Bour- 
geau, 1143), peak of Orizaba at 9000 to 10,500 feet (Linden, 3), Campanario (Hartweg), 
Real del Monte (Christy), between Mazatlan and Chilpancingo at about 4000 feet, and 
near El Guarda, between Guchilaca and the city of Mexico at about 8400 feet (Hum- 
boldt & Bonpland). 
Order CXXXVII. CYCADACE. 
(By W. T. THISELTON DYER, F.R.S.) 
Cycadacee, Benth. et Hook. Gen. Plant. ii. p. 443. 
Nine genera are referred to this Order, and the number of species is estimated at 
about seventy-five. They are concentrated in the tropics of both worlds, and in 
temperate South Africa and Australia. There is an outlying endemic species in the 
Southern United States, and another in the Japanese and contiguous islands. None of 
the three New-World genera are represented in the other hemisphere. 
In Skand. Naturf. Forhandl. iv. 1844, pp. 204 et 214, the title merely is given of a 
paper by F. Liebmann, “Abbildninger af 4 nye Mexicanske Cycadeer.” Of this paper 
I have not found any other trace. But by the kindness of Prof. Lange of Copenhagen, 
I have been allowed to examine Liebmann’s specimens and the elaborate drawings 
