142 BOTANY. 
branchlets nodding as in that species. Indians are said to use the berries as food. Travellers 
call this and the following species Sweet-berried Cedar. The seeds are as large as a small pea, 
and the shell is very thick and hard. The branchlets are about a line and a half in diameter. 
Leaves nearly as broad as long, very closely appressed, (there are no acicular ones in any of our 
specimens), obtuse, or sometimes rather acute, convex and marked with a depressed gland. 
JUNIPERUS PACHYPHLEA (n. sp.): arborea; foliis omnibus squamiformibus ovatis incrassato- 
gibbis acutiusculis, dorso glandula elliptica impres ; ramulis obtuse quadrangulatis, fructiferis 
erectis galbulos globosos minute tuberculatos trispermos brevioribus. Juniperus No. 1, Torr. 
in Sitgreaves’ Report, p. 173. On the Zuñi Mountains, Western New Mexico. This is the 
thick-barked Juniperus of Captain Sitgreaves. It seems to be undescribed, and is distinguished 
from the preceding species by the character of the bark, and by the berries (which are also very 
large and sweet) being 3-seeded. From the gland of each leaf a little drop of turpentine exudes. 
It is possible this may be J. Mexicana, Schlecht., which has berries half an inch in diameter ; 
but in that species the leaves are acuminate, and the berries conspicuously tuberculate, espe- 
cially at the apex. 
°“ JUNIPERUS OCCIDENTALIS, Hook. Fl. Bor.—Amer. 2, p. 166. J. Andina, Nutt. Sylv. 3, p. 95, t. 
110. Common on the mountains of New Mexico, in various places along the route as far as the 
Zuñi mountains. The glands are very obscure in the young leaves, but are plainly to be seen 
in the older ones. "The berries are larger and the branchlets much stouter than in J. Virginiana. 
JUNIPERUS VIRGINIANA, Linn. Spec. p. 1471; Michx. Sylv. 2, p. 353, 11 155. Near Zuni, Western 
New Mexico. Resembles the eastern plant, except that the leaves are all scale-like, and the 
berries are a little larger. 
LEMNACEX. 
LEMNA TRISULCA, Linn. Spec. 1, p. 1376; Kunth, Enum. 3, p. 5. Stagnant waters, near San 
Francisco; mixed with Azolla Caroliniana ; also on San Gabriel creek, California. "We have 
never seen North American specimens of this species in flower or fruit, 
LEMNA MINOR, Linn. l. e: Kunth, l. c. On the surface of running water; Williams’ Fork of 
the Colorado of California ; not in flower. 
TYPHACEA. 
TYPHA LATIFOLIA, Linn. Wet places, near Shawneetown, on the Canadian ; August; in fruit. 
NAIADACEZ. 
POTAMOGETON HYBRIDUS, Miche, Fl. 1, p. 101. In tributaries of the Canadian River; August; 
with mature fruit. Easily distinguished by its cristale spiral fruit. 
POTAMOGETON PECTINATUS, Linn.; Torr. Fl. N. York, 2, p. 257. With the preceding. Nutlets 
obovate ; the pericarp very thick, with a small lunate cavity. 
JUNCAGINEJE. 
'TRIGLOCHIN MARITIMUM, Linn.; Torr. Fl. N. York, 2, p. 261; Kunth, Enum. 3, p. 145. Low 
places i in reach of the tide ; Bes Francisco and Corte Madera, A: The fruit, in some of the 
species, agrees very well with Nuttall's T. elatum, which we fear is not distinct from this species. 
ALISMACEJE. 
Damasonrum CALIFORNICUM, Torr. in Benth. Pl. Hartw. p. 341:* foliis oblongis seu lanceo- 
latis basi cordatis obtusisve 3—5-nerviis; petals apice incisis; scapis adscententibus ` verti- 
* We much regret not having received the portion of Bentham's Plante Hartwegiant that contains most of the Endogens. 
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