214 Plante Lindheimeriane. 
Guadaloupe and Pierdenales. Comanche Spring. April. 
«A rough, unsightly shrub, from 4 to 6 feet high; only the 
young shoots show any inclination to climb or twine. Flow- 
on the three or four last joints, one or two in each axilla. Flowers minute, 0.3 of a 
line wide and 0.4 long, on very short, enclosed pedicels, which apparently are elon- 
gated immediately after flowering. Pedicel of the young fruit (ripe fruits not seen) 
half the length of the fruit. 
“9, A. Amertcanum (Nutt.): caule ramisque fasciculatis teretibus gracilibus 
patulis; squamis truncatis in vaginulas dilatatas cupuliformes connatis ; floribus 
masculis axillaribus terminalibusque nec spicatis. — Oregon, on Pinus, Nuttall. — 
Considerably resembling the slender forms of var. a. of the next species, but 
smaller, slenderer, and at once distinguished by the terete branches, the fasciculated 
branchlets, and much dilated vaginule. Female plant and fruit unknown to me. 
“3, A. CAMPYLOPODUM (7. sp.): Tamis oppositis seu dichotomis compresso- 
quadrangulatis; squamis truncatis breviter cuspidatis in vaginulas subcylindricas 
cupuliformes connatis; floribus axillaribus terminalibusque plerumque in spicam 
simplicem s. compositam aggregatis, masculis singulis vel binis ternisve, foemineis 
in quavis axilla singulis; baccis exserto-pedicellatis patulis s. recurvis. — Var. @. 
MACRARTHRON: caule compresso vix angulato; ramis plerumque gracilioribus; 
articulis plus minus elongatis; floribus feemineis sparsis et in ramulis brevibus 
paucis seu in spicas simplices aggregatis. — 6. ? BRACHYARTHRON: caule tereti ro- 
busto; ramis robustis articulis abbreviatis diametro vix longioribus; floribus 
foemineis in spicas densas compositas aggregatis.—I have comprised under this 
name different forms, which, when better known, will probably have to be separated 
as distinct species. My specimens are so incomplete that I can not even satisfactorily 
determine whether the different forms which constitute the first of the two varie- 
ties will finally be retained under one species. — Var. a. has been found in Oregon 
(only on Pinus ponderosa), Geyer; in New Mexico (only on Pinus edulis,) Fendler, 
282; and in California, Douglas.—The specimens from New Mexico (only male 
and female flowers seen) have short female spikes, bearing 2 to 5 flowers, or the 
flowers are scattered on the branchlets: the flowers are elliptical, 0.4 lines wide and 
0.5 long, almost sessile. Geyer’s Oregon plant (I have seen only a fruiting speci- 
men) has more elongated many-flowered female spikes; the flowers apparently 
ovate ; pedicel hardly one third the length of the (not quite ripe) fruit. The Cali- 
fornian plant (male and female flowers and fruit) is much stouter: male flowers 
twice as large as in the specimens from New Mexico, and not rarely 4-parted; 
female flowers in more elongated spikes, elliptico orbicular, small, 0.4 to 0.5 line in 
diameter; the recurved pedicel more than half the length of the fruit, which is 2 
lines long and 1,3 wide.— Var.? 8. has been collected in Mexico by Coulter. 
I can hardly doubt it to be a distinct species ; but my means to distinguish it are at 
present too limited. The stout terete stem, the short joints which are hardly longer 
than wide, the crowded compound or panicled spikes which resemble those of the 
following species, and the larger ovate (not elliptical) flowers appear to indicate 
specific distinction. Fem. flowers 0.6 lines wide and 0.8 lines long: fruit 2 lines 
long and 1.2 lines in transverse diameter, the pedicel more than half as long as the 
fruit: male flowers not seen. 
“4, A. crypTopopuM (n. sp.): caule ramisque acute quadrangulatis robustis 
articulis brevioribus ; squamis truncatis in vaginulas cupulatas connatis ; floribus in 
spicas densas compositas congestis, feemineis ovatis in quavis axilla singulis; 
