8 OROBANCHACEAE 
base. Cauline scales ovate or ovate-lanceolate; inflorescence corymbosely branched and very 
compact, 2.5—5 cm. long, the pedicels 3-10 mm. long; floral — — lanceolate, about 10 mm. 
long ; calyx 13-15. mm. long, the lanceolate- subulate lobes about ong; cor rolla purple, paler 
without, fhe upper lip darker than the lower, 25-30 mm. long, t ae sn -lips 4-6(7) long, hic of 
the corolla curved toward the outer part of the ar reali ce, the palatal folds evident; upper lip 
— eit - cleft, “. lobes rounded or retuse; lower lip clett to the base into oe: 
cutish divis anthers woolly; stigma peltate. 
kee seta and ‘laine, he Transition Zone to Canadian and Hudsonian Zones; in the Pacific States 
east of the Cascade Mou ns in Washington and Oregon and for the most it on the east face of the Sierra 
Nevada as fer south as OTulace Aig California; nehard to Montana, Wyoming, and Utah. Parasitic on 
Artemisia and associated shrubs. Type locality: Reynold’s Creek, Idaho. June-A ug. 
8. Orobanche codperi (A. Gray) Heller. Cooper’s or Desert Broomrape. 
Fig. 4956 
Aphyllon coopert A. Gray, Proc. Amer. Acad. 20: 307. 1885. 
Myz 
Orobanche Indoviciana var. latiloba Munz, op. 6 pf oa 1930. 
_ Plants fleshy and stout, 1-3 dm. ba nares or Ag ee a few axillary stems arising from the — 
viscid-puberulent. Cauline bra acts obtu -10 m inflorescence oo flowered, 6-18 c 
long, spicate or the main axis bra iy bearing 23 apalary spike es; the lowest flowers vadieellate. 
the rest sessile; calyx 5-9(12) mm. long, the tube 2-4 m the a iss ne attenuate ; 
floral bracts shorter than the eae: coro Cla Sie within, ea ellow markings at the palatal 
folds, grayish purple and puberulent without, 15-30 lon ng, the corolla-lips usually 4-8 mm. 
long ; the upper lip erect, short-cleft at t e apex, the na rrovly or ce rm ute — erect or some- 
— pian be lobes of the deeply cleft lower ne somewhat s vateaeae rowly or broadly 
; anthers rather sparsely hairy; stigma peltate, with a foie ne nee a sometimes 
shine and jegeas ng bilobed. 
Sandy des Low nora n Utah and Nevada and the Death Valley region, 
Pelee sooth through the Monee and ones. peed as ee California and eastward to Sonora and New 
a ic Fo aeraet tic on Franseria, Hymenoclea, and other desert shrubs. Type locality: Fort Mohave, Arizona. 
April— 
ae owers of some specimens from the southwestern edge of the Colorado Desert, California, resemble those 
of O. multicanls Brandg. from Lower California. Lei bs ack, ‘ila the bilobed stigma and other features of 
that species and are here considered to be variations of O. cooper 
Orobanche valida Jepson, Madrofio 1: 255. 1929. (Orobanche ludoviciana var. valida Munz, Bull. Tor 
Club 57: 621. pl. et g. 16. 1930.) Plants 1— 2 dm. high, dark est oat prone throughout, rather slender ; eauline 
bracts lanceolate; orescence spicate, the flowers separated, sessil cept for the lowest; calyx ong; 
corolla 12-14 mm. ORE: dark purple, the upper lip 3-4 mm. long, the “ower a little shorter, villowish, ge lobes 
with dark pas hs anthers glabrous. San gg Mountains, at an sap of Ag 500-6, 500 feet, : ge pe 
County, Califor Type locality: Rock Creek, San Gabriel Mountains. relationship of this little-kno 
species will douldicas be more clearly understood when further collections are aaa: 
9. Orobanche multifléra var. arendsa ( Suksd.) Munz. Suksdorf’s Broomrape. 
es 4957 
Aphyllon arcnosum Suksd. Allg. Bot. care a i 
Orobanche multiflora var. arenosa Munz, Bull. aes oan §7*623.-1930, 
Plants 5-18 cm. high with a See glandular ape Cauline bracts ovate to ovate-lance- 
olate ; iatloceem ee spicate, up to 10 cm. long, flowers except a few at the base sessile; floral bracts 
linear, shorter than the calyx; talyx rather ieceulaeis cleft ints linear-lanceolate lobes twice or 
ore t ak of the tube, 9-1 ng; corolla yellowish or pinkish, tin ith purple, 
glandular-pubescent, 15-20 m he upper lip a hallow-cleft with rounded 
m. long, t 
lobes, the — Boa a little ste divided to the base into narrow, obtuse or rounded divisions ; 
anthers glabro 
Sandy places, Upper Sonoran and Arid Transition Zones; Idaho. Wyoming, Nevada, and Utah and south to 
Arizona; “8 the Pacific States in eastern Washington southward east of the Cascade Mountains throu gh Oregon 
and occasionally collected east of the Sierra Nevada Divide in California; also reported ye the Piss demae 
Mountains. S San — 2 mag California. Parasitic on the Compositae. Type locality: Bingen, Klickitat 
oi 
is va s far sie § ‘from the large-flowered, typical form with deeply cut corolla-lips which is found 
in the Rio Groie “Walley, but = the relationship of the ——— forms is studied further it en ae eo leave 
var. arenosa in its present stat A specimen collected south of Needles, California, near the do River, 
Loge age corolla-lobes is nbltally assigned to O. multiflora var. pringlei Munz (Bull. Bi Club 57: 
10. Orobanche ramosa L. Branched Broomrape. Fig. 4958. 
Orobanche ramosa L. Sp. Pl. 633. 1753. 
Plants slender, yellowish, usually freely branching below into degen oP many elongated 
pe oy pei ulent elo. glandula i above, 15-25 cm. high. Cauline bracts few, — e- 
in 7-8 mm. long; spikes Society any-flowered, the lowest flowers sheet, pec oars = 3m 
long ; floral bracts 3, one ovate Steading the flower, the others linear, a Pee a 
including the ‘t attenuate lobes 5 mm lane: corolla 10-15 mm. long, the rea vstiowiats ibe lips 
bluish. 
: "Dc adventive from Asia parasitic on tomatoes and other cultivated plants. Known from Alameda County, 
alitornia 
