PAPEES ON LOEANTHACE^. 
489 
they abound on many neighboring trees. The berry is globose, glossy, of a light champagne color, with a tinge of 
red when dried.” Fendl. — The specimens are all fertile and in fruit ; so that it is not known whether the plant has 
the anthers of the genus, but of this there is little doubt, as^the species is apparently too closely allied to the Fhoraden- 
dron Californicum, Nutt., which is “parasitic on a StrombocarpusJ’ (Prosopis).^ 
282. Arceuthobium Oxycedri, M. Bieb. ? {A. gracile, Engelm. mss.). 283. A. Oxycedri, M. Bieb. ? [59] 
{A. robusturrij Engelm. mss.) 
From Gray’s Plants LiNDHEiMERiANi®, Part II. (Boston Journ. Nat. History, Vol. VI. 1850). 
Phoradendron flavescens (Nutt.) : ramis teretibus ; foliis oblanceolatis obovatis nunc orbiculatis obtusis [212] 
in petiolum brevem attenuatis trinerviis; spicis masculis subverticillatis folium sequantibus, articulis 4-5, 15-35- 
floris; fcemineis suboppositis folio brevioribus, articulis 3-4, 4-10-floris; floribus depresso-globosis annulato-carinatis 
1 The genus Phoradendron has recently been briefl}’- indi- 
cated by Nuttall (in Jour. Acad. Philad. ii. ser. 1, p. 185), 
but was unknown to Dr. Engelmann when he communicated 
to me the subjoined characters of Viscurn, Arccuthohium,, and 
Spiciviscum, Engelm., and of some species of the latter, tlie 
name of which I have necessarily changed to Phoradendron. 
1 VISCUM, Linn. Flores diced campanulati. FI. masc. 
Perianthium 4-fidum ; antherez lobis totis adnatce multicellu- 
losoc, poris plurimis dehiscentes. FI. foem. Calyx tubo cum 
ovario connato, margine integro, limbo ohsoleto. Corolla 4- 
petala, summo calyci inserta. Ovarium inferum, uniloculare ; 
ovulo unico pendulo : stigma sessile, obtusum, subhilobum. 
Bacca pulposa, corolla persistente coronata, monosperma. — 
Frutices gerontogei, foliosi, parasitic! ; foliis oppositis ; flori- 
bus masculis glomeratis terminalibus ; foemineis in spicas 
articulatas breves terminales congestis, in quaevis bractese 
axilla singulis. 
I have examined only Viscurn album, and based the 
characters on that species. 
2. SPICIVISCUM, nov. gm. [lege Phoradendron]. 
Flores diced globosi. FI. masc. Perianthium 3-(raro 2- s. 
4-)lobum ; anther (b lobis imis adnatce, transverse biloculares, 
poris s. rimulis verticalibus duabus dehiscentes. FI. feem. 
Perianthium 3-(raro 2- s. 4-)lobum. Ovarium inferum, uni- 
loculare ; ovulo unico pendulo : stigma sessile , obtusum. 
Bacca pulposa, perianthio persistente coronata, monosperma. 
— Frutices Americani foliosi s. aphylli, parasitic! ; floribus 
in spicas axillares longiores interruptas articulatas s. abbre- 
viatas dispositis, ssepe pluribus supra qusevis bractese axillam 
rhachidi immersis ; bracteis abbreviatis connatis vaginulam 
pelviformem formantibus. 
3. ARCEUTHOBIUM, M. Bieb. Flores dioeci, ovati, 
compressi. FI. mctsc. Perianthium tripartitum, antherce lobis 
mediis adnatce, globosce, uniloculares, rimula transversa dehis- 
centes. FI. foem. Perianthium brevissime stipitatum, biden- 
tatum. Ovarium inferum, uniloculare ; ovulo unico pendulo : 
stigma sessile conicum. Bacca (pulposa ?) corolla persistente 
coronata, monosperma. — Frutices gerontogei et Americani, 
aphylli, articulati ; foliis ad squamas connatas pelviformes 
rediictis ; floribus axillaribus terminalibus(iue, masculis 1-3, 
fcemineis singulis. 
PHORADENDRON, Nutt. [59] 
* Aphylla. 
1. [P. Californicum, Nutt. 1. c. Mountains of Califor- 
nia. Perhaps sanTS.as the next.] 
2. P. JUNIPERINUM, Engelm. supra. Santa Fe. 
* * Foliosa. 
3. P. FLAVESCENS, Nutt. 1. c. : ramis teretibus ; foliis 
obovatis in petiolum attenuatis 3-nerviis, junioribus x^uberu- 
lis ; spicis folio brevioribus ; bracteis truncatis ciliatis ; 
floribus in quovis articulo 6-10 depresso-globosis annulato- 
carinatis parce pubescentibus 3-(rarissime 2-)lobis. {V. fla- 
vescens, Pursh.) — On Platanus ' andi Ulnvus, in the woods 
of the lower Ohio and from there south ; o\\ Populus, along 
the liio Grande below Santa Fe {Dr. IVislizenus). A well- 
known species ; flowers half a line in diameter. 
4. P. ORBICULATUM, n. sp. : ramis teretibus ; foliis or- 
biculatis s. ovato-orbicnlatis breviter et abiTipte petiolatis 
indistincte trinerviis pubescentibus demum glabratis ; spicis 
folio brevioribus puberulis, etc., ut supra. — On different 
species of Quercus ; on Q. nigra, sterile hills of Arkansas 
{Engelm.) ; on several oaks, San Felipe, Texas {Lindhei- 
mer). — Leaves on the older branches exactly orbicular, 6 
to 10 lines in diameter ; young leaves somewhat longer than 
wide petioles a line and a half long : flowers half a line in 
diameter. ^ 
5. P. TOMENTOSUM : tomentosum; ramis teretibus ; foliis 
obovatis s. oblanceolatis obtusis in petiolum brevem breve 
attenuatis, senioribus subtus , obscure trinerviis spicis mas- 
culis folium longe superantibus ; bfaetds truncatis, articulis 
elongatis multi-(15-25-)floris' ; siuds fcemineis folio sub- 
brevioribus oppositis s. ;verticillatis ad»apicem; caulis pani- 
culatim congestis, articulis brevioribus sub 8-floris ; floribus 
immersis depresso-globosis annulato-carinatis puberulis 3- 
(rarissime 4-)lobis. {V. tomentosum, DCo Prodr. 4. p.- 670). 
On Algarobia and one or two other Mimosece, near Rinconada, 
Northern Mexico, Dr. Gregg . — No doubt the same as De 
Candolle’s plant, which was collected in Northern Mexico by 
Berlandier, also on MimosecE. Leaves an inch or oqe and a 
quarter long, and half as^wide. Sterile spikes one and a half 
to two and a half inches long : female spikes only about an 
inch long : flowers very similar to those of both the foregoing 
species, and of the same size or rather smaller. Fruiting 
spikes slightly elongated, an inch to an inch and a half long : 
berries one line and three-fourths to two lines in diameter. 
6. P. LANCEOLATUM, n. sp. : glaberrimum ; ramis te- 
retibus ; foliis lanceolatis elongatis subfalcatis obtusiusculis 
in x>etiolum brevissimum sensim attenuatis 3-5-nerviis ; spicis 
masculis folio brevioribus ; bracteis triangularibus connatis ; 
articulis 8-1 8-floris ; floribus immersis globosis 3-(rarius 4-) 
lobis. — On “Live-Oak,” Rinconada, Dr. Gregg. — Leaves 3 
inches long, half an Inch wide : sterile spikes an inch and a 
half to two inches long. Flowers|less than a line in diame- 
ter ; distinguished from those of the foregoing species by 
being destitute of the horizontal edge, and entirely glabrous, 
as is the whole plant. Anthers very distinct, similar to the 
common form of two-celled anthers, opening longitudinally, 
while in the other species they open by two pores. — Appar- 
ently near V. Schiedeanum, DC., but distinguished by the 
terete branches. 
