CATALOGUE. 
329 
erect or divaricate, striate, smooth or minutely resiiioiis-piiberulent, yellow- 
ish-green ; sheaths 2-cleft, the lobes 4-6" long, entire, short-triangular, lance- 
olate or linear-subulate, at length deciduous ; sterile aments 3-4" long, the 
bract's opposite and imbricated, anthers about 8, sessile or short- stipitate, 
the united column of filaments 2" long, twice exceeding the perianth and 
involucre ; fertile aments solitary, short-peduncled, 1- or usually 2-fruited, 
with 4 pairs of broadly-ovate thickish scales connate at base ; fruit 3-4" 
long, sessile, oblong-ovate, nearly triangular, smooth ; base of the radicle 
straight. — From Western Texas to California, Southern Utah, and Nevada. 
Abundant through Nevada, from the Sierras to the East Humboldt Mount- 
ains ; 4-G,000 feet altitude ; flowering in May and June, perfecting its fruit 
in July. The medullary portion of the stems abounds in a reddish-l)rown 
resin. The medicinal virtues of the plant are well known, and it has also 
been used as a substitute for tea. (1,108.) 
The integument of the ovule is said to be single in the genus, but here it 
is plainly double, the two coats united over the lower two-thirds of the ovule 
but easily separable, and wholly free above. The deciduous styhform pro- 
cess is a tubular continuation of the outer coat, ligulate and not stigmatic 
at the top, but affording ready access for the pollen to the apex of the 
ovule. This apex is subcomeous and incorporates the bases of the attenu- 
ated albumen and embryo with the integuments. Plate XXXIX. Fig. 1. 
A staminate branch. Fig. 2. A fertile branch. Fig. 3. Flowerless stems 
with well-developed leaves; all natural size. Fig. 4. Staminate anient. 
Fig. 5. Involucre, of connate bracts. Fig. G. Single bract, showing obscure 
veins. Fig. 7. Jointof the rachis, with its opposite flowers. Fig. 8. Perianth, 
laid open, showing upper side of stamincal column. Fig. 9. Fertile ament ; 
all enlarged four diameters. Fig. 10. Involncral bracts, enlarged Uso diam- 
eters. Fig. 11. Fruiting perianth, dorsal side. Fig. 12. Its ovule ; both 
enlarged four diameters. Fig. 13. Ovule; eularjzed eight dianielers: tlie 
integuments on the ventral side removed and the styliform process detached, 
floiibtfallb^i^iTaiHn^^n^^^ mi.l< r the name proviwonally i.ioj.osccl for it by Dr. Torrey in E^nory'^ 
I?ri>orf, p. 151. It was a-ain foll.'. t.'d tli.- last s.-ason by Dr. Pi.hiu r in Arizona. 
E TParrncv Torr. An un-hrshrnl) Avith the li.ibif of/:, r.nn^iphmtira. \m\ tho hrandnvs, the 
sheathing h-av-s, ami the hnicts of the aments in whorls ..f thr. .- ; bra. ts tl.i,, an.I n„„,b,-..nH.,is, i,, r>-^ 
imbricated alternating whorls, those of the fertile aments .lilat..*! and o.bi.nlar, on short prt.ul,., ^vhu h 
are8carcelyconnateatba.se; stamens 6-8; fertile llouvrs l-:5 ; ,,n ia,,.]> f ri;,n.,n,!ar, «>mewbat ronj,hen.d 
or minntely rngose, abo,it eqnalins the in volncre ; attenuated ba.se of the un-ieveloped radicle elongated and 
somewhat coiled.— New Mt-xiro; Arizona. 
42 
