m 



\ 



BOTANY. 



211 



10, J. Andina, Nutt. Sylv. 3, p. 95, t. 110, Eocky places, valley of the Pecos ; Bigelow. It 



is also a native of California and Oregon. 



JuNiPERUS ViRGrxrANA, Liim.; dlicJix. Sylv. 2, p. 353, t. 156. Rocky liills, western Texas ; 

 Bigelow, 



LiBOCEDRUS DECURRENs, ToTT. in SmWisou, Coutvih. 6, p, 7, t. 3, & in Whipple Rep. p. 140. 

 Summit of the mountains east of San Diego, California ; Dr Parry. A noble tree; sometimes 

 150 feet higli. The wood resemhles that of the white cedar. 



Thuja gigantea, Nutt. in Jour. Acad. PhiL 7, p. 52 ; tfc Sylva. 3, p. 102 t. Ill ; Newberry, L c. 

 p. 57^ Jig. 22. Near San Diego and other parts of California ; Parry. This is the Arbor vitce 

 of California and Oregon. It occurs as far north as Nutka Sound. 



CuPRESSUS MACROCARPA, Hartio. in Jour. ffort. Soc. Lond. 2, p. 187, ^ 4, p. 296, cum icon. 



xylogr. C. Macnabiana, Murray in Edinh. New 



April^ 1855 ? Kear the seashore 



at Monterey, California ; Parry. A 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 C[uadrangular, 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, 1^ 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 GovENiAXA, Gordon in Jour. Hort. Soc. Lond. I. c. p. 295, cum icon, xylogr. On the 

 mountains east of San Diego, California ; Parry. A shrub 6 to 10 feet high, slender, and mod- 

 erately branched. Leaves as in 0. macrocarpa, except that they are less appressed. Sterile 

 aments numerous, oblong. Fruit 4 to 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 



w 



none such were among his specimens. 



LEMNACEiE. 



Lemna trisulca, Linn.; Kunth, Enum. 3, p. 5 ; Torr. Fl. N. York, 2, p. 246. On the San 

 Felipe creek below tlie mouth of the Pecos ; Bigeloiv, Schott, On the Mimbres, N'ew Mexico ; 

 Uiurber. (No. 1890, Wright.) 



Lemna minor, Linn.; Kunth. I. c; Torr. I. c. In running water, San Luis Eey, California, 



associated with Azolla; Parry. Cimieluque 



(N 



The specimens are without flowers or fruit, so that we are not certain of the species. 



Lemna poltrrhiza, Linn.; Kunth, I. c; Torr. I. c. On the surface of water, borders of the 

 Limpia and other streams, Texas ; Bigelow. Cimielu<][ue Springs, Chihuahua ; Wright. 



TYPHACE^. 



Typua LATirOLiA, Linn.; Kunth, Enum. 3, p. 90 ; T(yrr. Fl. 2, p. 247. In water, Painted 



Caves, western Texas ; Bigeloiv. 



NAIADACE^. 



Naias flexilis, Roslk.; Kunth, Enum. ^, p. 114. N. Canadensis, Michx. FL 2, p. 220 ; Torr. 

 FL. N. York, 2, p. 250. Western Texas ; Bigelow, Wright. 



