BOTANY. | [87] 31 
CENOTHERA (CHYLISMIA) BREVIPES (sp. nov.): villoso-hirsuta vel glabra ; caule simplici (3-9 pol- 
licari) inferne foliato; foliis lyrato-pinnatisectis, segmentis denticulatis, lateralibus parvis irregu- 
laribus nunc obsoletis, terminali maximo ovato vel subcordato; petalis calyce staminibusque duplo 
longioribus, capsula longe lineari tubum calycis et pedicellum multoties excedente. Gravelly 
hills on and near the Colorado; February 17 and 20. We have seen an imperfect specimen of 
this plant in a small collection made on the Gila, etc., by A. B. Gray, Esq., surveyor, in the 
possession of Mr. George Thurber. The stem is pretty stout, much thicker than that of O. 
scapoidea and the nearly related O. claveeformis; and the flowers are very much larger, the 
light yellow petals being from half an inch to an inch in length; they are rounded, obovate, 
and entire. The pedicels are about as long as the bracts, varying from 1 to 5 lines in length, 
while the ovary is usually an inch long. The latter, like the limb of the calyx, is very villous 
in some specimens, and sparingly so or entirely glabrous in others. Ripe pods arcuate ascend- 
ing, about an inch anda halflong. Veins of the leaves often purplish beneath, as in O. clave- 
formis. The raceme is nodding at the undeveloped summit, and scorpioid, as in the related 
species.—Gray, Mss. 
(inornera ovata, Nutt. in Torr Gray, Fl. 1, p. 507. San Francisco, and on mountains 
near Oakland ; April 3 and 4. 
CENOTHERA GRACILIFLORA, Hook. & Arn. Bot. Beech., p. 341; Hook. Ic. t. 338. San Gabriel, 
California ; March 23. . 
CENOTHERA DENTATA, Cav.?; Torr. & Gray, Fl. 1, p. 510. Gravelly hills near the Great 
Colorado; February 17. Knight's ferry, on the Stanislaus ; May; a much branched and larger 
flowered variety. 
CENoTHERA sTRIGULOSA, Torr. §° Gray, 1. c. Cocomungo ; March 8, and San Francisco ; April 8. 
CENOTHERA CHEIRANTHIFOLIA, Hornem. ; Torr. & Gray, l.c. San Francisco; April 8. 
' CENoTHERA virIpEscENS, Hook. Fl. os —Am. 1, p. 214. Seashore at Pitts de los Reyes, 
California ; April 17. 
Givorarrcir Norra, Torr. & Gray, Fl. 1, p. 514. Hillsides on the Yuba, near Downie- 
ville; May 22. 
EvcHARIDIUM concINNUM, Fischer & Meyer ; Lindl. Bot. Reg., t. 1962. Bolinas bay, California; 
April 19. Also, a specimen collected by Dr. Andrews; the habitat not recorded. This plant 
rarely occurs in Californian collections, 
CLARKIA ELEGANS, Lindl. Bot. Regq., “#1875. Also, C. unguiculata, Lindl.? Hillsides, 
Knight’s ferry ; May 7-8. 
Lupwieta NATANS, Hill. Sk. 1, p. 581. Beavertown on the Canadian in wet places ; August. 
SrenosipHon vireatus, Spach. Monogr. Onagr., p. 64. Rocky prairies on the Canadian ; 
August. 
cians PARVIFLORA, Dougl. in } Hook. Fl. Bor—.Am. 1, p. 208. Sand banks of the Canadian ; 
August. 
GAURA BIENNIS, Linn. 8. prrcuert, Torr. & Gray, Fl. 1, p. 517. Near Beaverstown, Indian 
Territory ; August. San Domingo; October. 
Gaura vittosa, Torr. in Ann. Lyc. New York, 2, p. 200. Prairies and hills on the Upper 
Canadian ; September. 
GavRa coccinza, Nutt. Gen. 1, p. 249. Prairie hills on the Canadian ; September. 
GAURA HETERANDRA (sp. nov.): glabella, annua; caule ramoso ; foliie membranaceis ovato- 
lanceolatis summis anguste lanceolatis acuminatis schalalien 3 ; Spicis paniculatis laxis; floribus 
tetrameris parvis, inferioribus folioso-bracteatis; tubo calycis infundibuliformi lobis dimidio bre- 
vioribus ; petalis obovato-spathulatis conformibus ; staminibus 8, alternis brevioribus fere anan- 
_ theris, 4 longioribus antheris cordato-rotundis ; stigmate integro ; fructu brevissime pedicellato 
oboyato gibboso 3-4-loculari. River banks, Mokelumne Hill, California; May 17. Stem a foot or 
more in height, erect, paniculately branched above; the branches, etc., slightly puberulent, 
Cauline leaves two inches in length, and with a slender petiole of half or two-thirds of an inch 
