54 BOTANY OF DR. A. WISLIZENUS’S EXPEDITION 
bright-flowered Pentstemon coccineus ; Lobelia mucronata,’ with fine red, and LZ. pecti- [108 (24) ] 
nata,2 with blue flowers. Amongst the most curious plants collected here is also to be 
mentioned an Eriogonum, with inflated clavate internodia, and dark red flowers. Phaseolus bilo- 
batus, * is another interesting plant. 
In the following spring Dr. Wislizenus accompanied the Missouri volunteers, under [109 (25)] 
Colonel Doniphan, from Chihuahua to Parras, Saltillo, Monterey, and Matamoros, 
Zealous as ever, he again made large collections on this tour, but his duties as a military 
surgeon occupied his time rather more than the naturalist should have desired. Nevertheless his 
40 PENTSTEMON COCCINEUS, n. sp.: glaberrimus, glaucus, foliis infimis obovatis, caulinis inferioribus oblongo- 
linearibus, superioribus linearibus minutis ; racemo laxo, pedicellis oppositis, elongatis, 2-bracteatis, 1-floris ; calycis 
glandulosi segmentis ovatis; corolla tubo superne dilatato, limbo bilabiato, inbio superiore ad medium bilobato; 
antheris divaricatis, filamento sterili glabro, apice dilatato; capsula acuminata. 
owers in September and October. Stem 1 to 2 feet high, nearly naked above, pedicels filiform, lower 
ones much longer than the flower, which is 15 to 18 lines in length; bright scarlet or crimson. Next to P. imberbi 
Btand but easily sake. 
1 LOBELIA MUCRONATA, n. sp.: perennis, caule simplici erecto, glabro, infra folioso, supra nudo; foliis lineari- 
aera elongatis, ine argute denticulatis; floribus laxe spicatis; bracteis linearibus glanduloso-dentatis, 
inferioribus pedicellum superantibus, superioribus eum equantibus; calycibus hemispbericis et pedicellis hirtis ; 
lobis calycis subulatis tubum duplo superantibus, tubum corolle dimidium equantibus; lobis corolle superioribus 
lanceolatis, inferioribus ovatis mucronatis. 
Cosihuiriachi along rivulets ; flowers in September. Stem 1 to 2 feet high; racemes short, few (3 to 12) 
flowered ; color of flower darker red than in L. cardinalis, more like L. fulgens; distinguished from all similar ones 
by the short lobes of the calyx, and the ovate mucronate lower segments of the corolla. 
I insert here the description of a nearly related species from the country below Monterey. 
LOBELIA PHYLLOSTACHYA, n. sp.: glabra, caule erecto, folioso; foliis lanceolatis, acuminatis, irregulariter dentatis 
s. inferioribus subintegris; spica infra foliosa, elongata, densiflora; bracteis serrulatis, inferioribus florem longe super- 
antibus, superioribus pedicello longioribus ; calycis glabri laciniis subulatis corollam vix «quantibus s. ea brevioribus 
cont beats superioribus linearibus, inferioribus lanceolato-linearibus, acuminatis. 
amps between Monterey and Cerralbo; flowers in May. Near L. Texensis, Raf., but distinguished by its entire 
ian by the long (6 to 12 inches), thick and foliaceous spike, and by the shentee segments of the calyx 
#2 LOBELIA PECTINATA, n. sp.: caule erecto, scabriusculo, folioso; foliis, bracteis et lobis calycinis pectinato- 
dentatis, scabris; foliis inferioribus oblongo-linearibus sessilibus, superjoribas e basi lata cordata, decurrente angustatis; 
racemo elongato densifloro, bracteis florem subswquantibus; calycis tubo turbinato pedicellum sqnante, lobis duplo 
breviore; tubo corolle brevi, lobis superioribus lanceolatis, inferioribus ovatis, ad medium coalitis; antheris styloque 
inclusis, 2 inferioribus apice barbatis 
Cosihuiriachi in moist places; flowers in September. Annual (2) 1 to 1} foot high; leaves about 1 inch long; 
mes dense 4 to 6 inches long, blue flowers 6 lines long; tube with 3 slits about the siiiddle. 
48 ERIOGONUM ATRORUBENS, n. sp.: perenne, foliis radicalibus petiolatis, lanceolatis, elongatis, villosis; caulis 
glabri glauci internodiis superne tumidis, clavatis; caule iteratim dichotomo, ad bifurcationes bracteis subulatis pilosis 
instructas involucrum alarem elongato-pedicellatum gerente; involucris campanulatis 5-dentatis, margine pilosis, 
multifloris. | 
Cosihuiriachi on the banks of streamlets, flowers in September. Perennial, 1} to 2 feet high; leaves all radical, 
5 to 6 inches long, 9 lines wide, on shorter petioles; some of the lower joints about 6 lines in diameter, the upper ones 
much less tumid; pedicels 1 to 3, lowest even 4 inches long; involucrum about 1 line long and wide, always 5-toothed, 
including 25 to 30 deep red flowers; lobes of perigonium about equal; nut olive-green, acuminate, three-wing 
Singularly near E. inflatum, Torr. and Veen. , perhaps too near to be specifically separated ; but apparently distinct by 
the hairy leaves and bracts, the fureate Revtelon of the stem, the large number of flowers in each involucrum, and per- 
haps -_ purple color (not rent by Torrey). 
HASEOLUS BILOBATUS, n. sp.: caule prostrato, pilis retrorsis hispido ; foliolis adpresse pilosis reticulatis, 
isichstntn subsessilibus eshte: bilobatis, terminali petiolulato, lineari-oblongo ; pedunculis folia longe supe 
rantibus multifloris ; calycis hirsuti laciniis subulatis tubum wquantibus ; leguminibus compressis, hirsutis, curvatis ; 
seminibus levibus. 
Common about Cosihuiriachi ; flowers in September. Resembles Ph. leiospermus, T. and Gr., but the brown- 
red flowers and legumes much smaller ; shape of the leaves very characteristic. Legume 9 lines long and 1 line wide; 
seed very small, 
SR he SE IMENE IE 
a ee ee 
