BOTANY. 187 
banks of rivers throughout western Texas and New Mexico, and west of the Pacific ; flowering 
from April to September. Dr. Parry found it in abundance on the-deach near San Diego. 
HELIOTROPIUM INUNDATUM, Swartz Fl. Ind. Oc. 1, p. 343; Gray & Engelm. Plant, Lindheim. p. 
18. Sandy plains, Eagle Pass, September; Bigelow. Near the Pecos; Schott. Dr. Edwards 
and Major Eaton found the plant near Monterey, Mexico, and Dr. Gregg at Matamoras. Alex- 
andria, Louisiana; Dr. Hale. (Nos. 700, 917 and 2117, Berlandier. No. 1550, Wright.) АП 
our specimens are evidently annual; but De Candolle has described it as fruticulose. The root 
does, indeed, as in many other annuals of this dry country, become quite woody late in the 
season. The nutlets are ovate and villous, and their face marked with 2 small ovate protuber- 
ances, but with no foveole. 
HELIOTROPIUM PHYLLOSTACHYUM (n. sp.): annuum, diffuse ramosum, strigoso-hirsutum ; foliis 
lanceolatis basi in petiolum brevem attenuatis ; spicis solitariis interrupte foliaceis ; floribus sessi- 
libus; lobis calycis lanceolatis inequalibus; corolle tubo longitudine calycis extus piloso ; 
antheris superne attenuatis apice puberulis ; nuculis subglobosis extus strigulosis intus bifoveo- 
latis, Western Texas, No. 1551, Wright. We have the same plant, collected near Monterey, 
Mexico, by Dr. Edwards and Major Eaton, and from Key West sent by the late Mr. Blodgett. 
It is also No. 1538 and 3038 of Berlandier, who collected it at San Fernando, Cohahuila. Plant 
more or less branched and diffuse; the branches 3-5 inches long, of a grayish aspect, Leaves 
6-8 lines long and 2-23 lines wide, scabrously hirsute ; the hairs arising from a little callous 
tubercle. Spikes many-flowered ; many of the flowers ebracteate, others furnished with a large 
foliaceous bract which resembles the proper leaves. Flowers small: corolla apparently white, 
the lobes lanceolate and erect. Stamens inserted at the lower part of the corolla-tube ; anthers 
somewhat hastate. Style very short; stigma conical from a broad base. Nutlets about half a 
line in diameter, with two deep pits on the face. It belongs to the section Orthostachys. 
HzrrorgoPruM GREGarr (n. sp.): suffruticosum, e basi ramosum, prostratum ; foliis lanceolato- 
linearibus obtusiusculis pilis brevibus adpressis hirsutis; spicis paucifloris parce foliaceis brac- 
teatis, floribus sessilibus; corolla calyce duplo longiore, limbo plicato, laciniis brevissimis ; 
antheris apice barbulatis ; stigmate superne attenuato; nuculis subglobosis hispidis facie bifoveo- 
latis. Sandy places near El Paso, April; Bigelow. Near Chihuahua, August ; Thurber. (No. 
487 and 1548, Wright.) Valley of Conchos, near Santa Rosalia, May; Gregg. Boca Grande, 
GED, March —April ; Capt. E. K. Smith. Stems prostrate, 3-8 inches long. Leaves 
6-10 lines long, rarely 2 lines wide. Spikes at first distinctly circinate, mostly few-flowered, 
but sometimes 15-20-flowered, irregularly foliaceous. Flowers on short pedicels, white, 
odorous. Corolla 3-4 lines in diameter, the limb spreading and strongly plicate; lobes short 
with intermediate shorter ones in the sinuses. Stamens inserted about the middle of the tube 
of the corolla ; anthers oblong, acute, at first coherent by their villous tips, but at length dis- 
tinct. Style very short; stigma with a broad truncated base and tapering upward. Carpels 
hispid with short erect hairs; the face contracted and marked with 2 minute foveoles. Mr. 
Thurber informs me that the flowers are very fragrant. 
HELIOTROPIUM ANGUSTIFOLIUM (n. sp.): suffruticosum, ramosissimum, erectum, adpresso-hirsu- 
tum, incanum ; foliis linearibus vel lanceolato-linearibus acutis basi angustatis ; spicis dichotomis 
vel solitariis ebracteatis; floribus brevissime pedicellatis post anthesin patulis vel nutantibus ; 
corolle tubo calycem subequante ; stigmate e basi subgloboso elongato; nuculis subglobosis 
hispidis intus bifoveolatis. Western Texas and along the Rio Grande, south to Eagle Pass, 
18 
