Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean: Vol. 7, Pt. 4

BOTANY.
HYProLEPIs CALIFORNICA, Hook. Fil. 2, p. 71, t. 88 (A.) Between San Bernardino and San
Gabriel. A neat little form, growing in bunches.
GYMNOGRAMMA TRIANGULARIS, Kautf.; Hook. & Arn. Bot. Beechey, p. 161 and 405. Shore
of Santa Inez.
AZOLLA CAROLINIANA, Willd. Sp. 5, p. 541; Torr. Fl. New York, 2, p. On stagnant water;
Salinas valley.
PARMELIA CAPERATA, Ach.; Tuckerm. Syn. Lich. N. States, p. 29. Rocks and trees on the
Salinas river.
RAMALINA MENZIESII, Taylor; Tuckerm. Lich. Exsicc. No. 57. R. retiformis, Tuck. Syn
Lich. p. 13. Abundant on oak trees on the Rio Pajaro, and in many other parts of California.
It is a beautiful and singular species, and is called Lace Lichen. Cattle are said to eat it with
avidity.
RAMALINA SCOPULORUM var. TENUISSIMA. Hook. &.rn. in Bot. Beech7y's Voy., p. 163. Plains
of the Salinas river.
USNEA BARBATA, var. RUBIGINEA, Tuck7cerm. Syn. Lych. N. States, p. 8. With the last.
MACROCYSTIS PYRIFERA, Agardh; Harv. Nereis Bor. -Amer. 1, p. 84. Sea shore south of Santa
Barbara. Dr. Hooker and Prof. IHarvey admit but one species of this genus.
HALIDRYS OSMUNDACEA, Harv. 1. c. t. 2. Cystoseira osmundacea, Agardh. With the last.
Fucus CERANOIDES, Linn.; Harv. 1. c. The specimens are in fruit. With the last.
PHYLLOSPORA MENZIESII, gardh; Harv. 1. c. t. 3, B. With the last.
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