BOTANY. 211 
10. J. Andina, Nutt. Sylv. 3, p. 95, t. 110. Rocky places, valley of the Pecos; Bigelow. It 
is also a native of California and Oregon. 
JUNIPERUS VIRGINIANA, Linn.; Micha. Sylv. 2, p. 353, t. 156. Rocky hills, western Texas; 
Bigelow. 
LIBOCEDRUS DECURRENS, Torr. in Smithson. Contrib. 6, p. T, t. 3, & in Whippl. Rep. р. 140. 
Summit of the mountains east of San Diego, California; Dr Parry. А noble tree; sometimes 
150 feet high. "The wood resembles that of the white cedar. 
THUJA GIGANTEA, Nutt. in Jour. Acad. Phil. ч, р. 52; & Sylva. 3, p. 102 t. 111; Newberry, l. c. 
p. 51, fig. 22. Near San Diego and other parts of California; Parry. This is the Arbor vite 
of California and Oregon. It occurs as far north as Nutka Sound. 
CuPRESSUS MACROCARPA, Hartw. in Jour. Hort. Soc. Lond. 2, p. 187, £ 4, p. 296, cum icon. 
xylogr. C. Macnabiana, Murray in Edinb. New Phil. Jour., April, 1855? Меат the seashore 
at Monterey, California ; Parry. . À tree often 30 feet or more in height, with a trunk 18 inches 
in diameter. Hartweg states that he has seen it 60 feet high, with a trunk of 3 feet in diameter. 
The head is usually depressed and very dense. Branchlets distinctly quadrangular, rigid, and 
stouter than in J. Virginiana. Leaves closely imbricated, rhombie-ovate, obtuse, very thick, 
depressed each side of the blunt keel. Sterile aments globose-ovate, 14 line long. Anthers 
4-celled. Fruit the size of a large nutmeg, globose. Scales 6, thick and woody, irregularly 4 
to 5-angled, each with a strong excentric protuberance or blunt point. They are closely joined 
at first, but at length separate from one another. Seeds 6 to 8 under each scale, angular by com- 
pression, narrowly winged. 
Cupressus GovENIANA, Gordon in Jour. Hort. Soc. Lond. l. с. р. 295, cum icon. zylogr. On the 
mountains east of San Diego, California ; Parry. A shrub 6 to 10 feet high, slender, and mod- 
erately branched. Leaves as in C. macrocarpa, except that they are less appressed. Sterile 
aments numerous, oblong. Fruit 4to 6 lines in diameter; scales 10, mucronate in the depressed 
centre. Dr. Parry thinks he has seen forms intermediate between this and the last species, but 
none such were among his specimens. 
LEMNACEJE. 
LEMNA TRISULCA, Linn.; Kunth, Enum. 3, р. 5; Torr. Fl. N. York, 2, р. 246. On the San 
Felipe creek below the mouth of the Pecos ; Bigelow, Schott. On the Mimbres, New Mexico ; 
Thurber. (No. 1890, Wright.) 
LEMNA MINOR, Linn.; Kunth,l. с.; Torr.l. c. In running water, San Luis Rey, California, 
associated with Azolla; Parry. Cimieluque Springs, Chihuahua; Bigelow. (No. 1892, Wright.) 
The specimens are without flowers or fruit, so that we are not certain of the species. | 
LEMNA POLYRRHIZA, Linn.; Kunth, 1. с.; Torr. 1. c. On the surface of water, borders of the 
Limpia and other streams, Texas; Bigelow. Cimieluque Springs, Chihuahua ; Wright. 
ТҮРНАСЕЖ, 
Typua LATIFOLIA, Linn.; Kunth, Enum. 3, p. 90; Torr. Fl. 2, p. 241. In water, Painted 
Caves, western Texas; Bigelow. : 
NAIADACEA. 
Naras FLEXILIS, Rostk.; Kunth, Enum. 3, p. 114. N. Canadensis, Micha. Fl. 2, p. 220; Torr. 
Fil. N. York, 2, p. 250. Western Texas; Bigelow, Wright. 
