BOREALES—BOLLEANAE 25 
Leaves short, resembling scales, but thiek and disartieulating: glabrous: 
spike 1-jointed. P. minutifolium. 
Leaves linear-oblong. 
Tomentose: spike often 2- or 3-jointed. P. capitellatum. 
Minutely papillate or hispid : spike mostly 1-jointed. 
Staminate spike about 12-flowered. P. tequilense. 
Staminate spike about 6-flowered. P. saltillense. 
Leaves somewhat spatulately linear. P. Bolleanum. 
Leaves oblanceolate-spatulate. 
Spike mostly 1-jointed. 
Staminate spike about 12-flowered. On Juniperus. P. densum. 
Staminate spike about 8-flowered. On Abies, ete. P. pauciflorum. 
Spike mostly 2-jointed: staminate spike about 6-flowered. 
P. guadalupense. 
^ PHORADENDRON MINUTIFOLIUM (Urban), 
Phoradendrum minutifolium Urban, Bot. Jahrb. vol. 23. Beiblatt 57. 
p. 2. 1897. 
Not forked, the moderately short and slender somewhat squarish 
branches without cataphyls, dioecious. Internodes short (1-2x10 mm.), 
glabrous. Leaves seale-shaped as in the preceding but fleshier, spreading, 
half-ovate, acute, articulated at base and deciduous, 2-3 mm. long. Spikes 
solitary, very short (scarcely 3 mm.), smooth, with a single joint. 
Fruit ?.— Plate 16. 
Eastern Sierra Madre region (?exelusively) on Juniperus.—The 
type from Eastern Mexieo. Forming a transition to the preceding group. 
Specimens examined :—MeExico. Llanos de Perote (Schiede, 402,-the 
type). Cofre de Perote (Humboldt,-associated with Arceuthobium 
vaginatum). 7227 
оо Phoradendron capitellatum Torrey, n. sp. 
Phoradendron capitellatum Torrey in herb. 
Viscum Reichenbachianum Seemann, Bot. Herald. p. 295. 1852-7,—as 
to the Wright citation only. 
Not forked, the moderately long and slender branches without cata- 
phyls, dioecious. Internodes short (1-3x5-10 mm.), at least for a time 
densely stellate-tomentose. Leaves narrowly elliptical-oblong or in- 
volutely linear, submueronately acute, sessile, 2х10-15 mm. Spikes soli- 
tary, very short (5 mm.), with mostly 2 rounded joints 2-flowered when 
pistillate and about 6-flowered in 6 series when staminate: scales somewhat 
hairy: peduncle suppressed. Fruit straw-colored, subglobose, about 
4 mm. in diameter: sepals somewhat pointed.—Plate 17. 
Chihuahuan region (? exclusively) on Juniperus.—The type from 
New Mexico. 
