PAPERS ON LORANTHACEA. 493 
ARCEUTHOBIUM ROBUSTUM, ee Pl. Fendl. p. 59; A. cryptopodum, Engelm. Pl. Lindh. p. 214.— Stout, 2-4 
inches high, 2-3 lines thick at base, iculate, much branched, heownieh yellow to dark olive-brown ; staminate 
plants smaller than the pistillate ones ; pra spikes with much-compressed, adpressed buds ; flowable mostly 3- 
parted, 14-1} lines wide ; anthers attached above the middle of the ovate, acute lobes ; ripe fruit 2} lines long. 
x dy on Pinus ponderosa, Colorado, New Mexico, and Arizona ; 5 Cara Apache (4. K. Gilbert, 1873) and Mount 
m (Rothrock, 787), 1874. Flowers in June. Fruit mature in August and September, The closely allied 
A. a Engelm., is distinguished by more elongated spikes, ventricose, divaricate buds of the staminate, mostly 
4-parted, larger flowers, with lanceolate, ee rae and anthers attached below their centre ; it also occurs on 
imus ponderosa, but more frequently on other conifers. Both persist for several years, the female plants always 
longer than the male. 
From THE Botany or CatirorniA, Vou. II., py SereENo Watson, CamBripcE, 1880.* 
PHORADENDRON, Norr. 
* Leaves foliaceous, mostly dilated upward from a narrow base. [105] 
. P, FLAVESCENS, Nutt. Branches terete, pubescent when young (as also the carn bran a foot long or more: 
leaves oblanceolate to obovate or orbicular, $ to 2 inches long, obtuse, 3-nerved, at last g : bracts connate into a 
short truncate cup : flowers deerimeckealabie, the salys-tobes ciliate on the margin : eo spikes opposite or ver- 
ticillate, usually shorter than the leaves, 3-7-jointed, the numerous flowers mostly in 4 to 6 rows on each side and 
occupying nearly the whole joint, very fragrant with the odor of pond-lilies ; anthers transverse, opening by 2 pores : 
pistillate spikes usually opposite, shorter (rarely 5-6-jointed), the flowers (2 to 7 on each side of a joint) in not more 
than three series ; berries white, 2 lines in eee er. —Engelm. Pl. Lindh. 212, Viscwm flavescens, Pursh, the com- 
mon glabrate <a leaved southeastern for 
Var. M M Leaves gut (2 to 25 inches long), broad, often 5-nerved, glabrate : flowers 
larger, in stout rons spikes. — Wheeler’s Se, vi. 252. 
ar. VILLOSUM, Engelm. l. c. Leaves small or middle-sized, orbicular to upitegies permanently pubescent or 
tomentose : spikes slender, rather short. — P. villosum, Nutt. 1. c. ; Engelm, Pl. Lindh 
he latter variety is common throughout the oe chiefly. on oaks, from 8. pre se Oregon, and eastward 
to New Mexico and Texas; the former occurs on Populus, Platanus, Fraxinus and other trees, from 8S. California to 
New Mexico. Var. tromENtosuM (Viscum tomentosum, DC.) is found in Northern Mexico, on Mimosee, and is densely 
oe with slender elongated spikes. 
. Botieanum, Fichler. Puberulent, at length glabrous : branches terete, less than a span long: leaves 
thick, pikes to linear, 6 to 12 lines long by 1 to 3 wide, nerveless, obtusish : spikes opposite or rarely in fours, with 
connate minutely ciliate bracts ; the staminate of two 6-12-flowered nese the fertile of a single 2-flowered joint : 
anthers transverse, opening by pores: fruit white, 14 lines in diameter. — Fl. Bras, v?. 134". Viscum Bolleanum, 
Seem. Bot. Herald, 295, t. 63. 2. pauciflorum, — y, Pacif. R. Rep. iv. 1 
conifers, mostly Juniperus, from the Geysers (Brewer) to San Felipe (Palmer) and into Arizona and Mexico ; 
also on Guadalupe Island, Palmer. A specimen on a Atle concolor, from Duffield’s Ranch near Auburn (Bigelow), is 
larger and with larger broader leaves. 
* * Leaves reduced to short mostly connate scales : spikes opposite, mostly few-flowered. 
3. P. CALIFORNICUM, Nutt. Pubescent or at last glabrous : bere terete, slender, a foot or two long: seales 
hirvally ovate, acute, spreading : staminate spikes of 2 or 3 (rarely 5) flower-bearing joints, each with 2 to 6 ovate- 
subglobose flowers : anther-cells oblong, opening by a longitudinal ee fertile spikes sometimes with nearly as many 
joints and flowers, the joints elongated (often an inch long) in fruit : berries reddish, 2 lines wide. — Pl. Gambel, 185 ; 
Engelm, Pl. Lindh. 213. 
Southern California and Arizona, on various Mimosee and Cassiew, Larrea, etc. 
_P. sunrpertxum, Engelm. Glabrous, stout, densely branched, 6 to 9 inches high : branches terete, the ulti- 
mate branchlets quadrangular : seales broadly triangular, obtusish, connate or distinct, ciliate: staminate spikes of a 
single 6-8-flowered joint (rarely two) : anthers a ey opening by pores : pistillate spikes 2-flowered : berry glo- 
bose, ie or light red, 14 lines wide. — Pl. Fendl. 5: 
Var. Lisocepri, Engelm. Branches a foot long or ce slender : joints more elongated, the ultimate ones more 
sharply erie 
n different species of Juniperus, from Truckee Pass southward and sales S. Nevada and Arizona to New 
Mexico : the variety on Libocedrus decurrens, from the Yuba River to San Bernardin 
* The generic characters are omitted from this paper, having been given elsewhere. As stated on p. 104, ouly the fol- 
lowing species of Phoradendron are found within the limits of the United States. — Eps, 
