BOREALES—BRACHYSTACHYAE 47 
Specimens examined :—Mexico. LOWER CALIFORNIA. Carmen Island 
(Palmer, 882, Nov. 1890,—the type). Todos Santos (Brandegee, 512, 
San Jose del Cabo (Brandegee, 512). 
„> Phoradendron mazatlanum n. sp. 
Not forked, the rather long and stout branches without cataphyls, 
dioeeious?. Internodes rather long (2-3x50-60 mm.), rather evanescently 
and sparsely short-villous or puberulent like the foliage. Leaves sub- 
spatulately oblong, sometimes faleate, subacute, .5-.8x3.5-4.5 em., grad- 
ually narrowed to the broad sessile base. Spikes mostly solitary, mod- 
erate (20 mm.), somewhat puberulent, with about 4 joints some 10-flow- 
ered about the middle when pistillate. Fruit?: sepals nearly glabrous.— 
Plate 48. 
Sonoran region of Mexico (? exclusively) on Leguminosae.— The type 
from Sinaloa. 
Specimens examined :—MeExico. Mazatlan, Sinaloa (Gregg, 1202, 
1849, —the type). 2 ates 
^ PHORADENDRON BRACHYSTACHYUM Nuttall. 
Phoradendron brachystachyum Nuttall, Jour. Acad. Philadelphia. n. s. 
vol. 1. p. 185. 1847. 
Viscum brachystachyum de Candolle, Prodromus. vol. 4. p. 280. 1830. 
Not forked, the rather long and slender branches without cataphyls, 
dioecious. Internodes from short (2x20 mm.) to long (8x60 mm.), some- 
what varnished, evanescently hispid like the foliage. Leaves extremely 
variable even on the same shoot, from typically oblong-laneeolate or ob- 
laneeolate to obovate or orbieular, the narrower forms more or less fal- 
eate, obtuse, .5x3.5, 1.5-2x5, or 1.5x1.5 em., euneately narrowed rather 
than petioled for 3-5 mm. Spikes mostly solitary, short (10 mm., scarcely 
reaching 15 mm. in fruit), sparingly puberulent, with 2 or 3 somewhat 
swollen joints 8- to 12-flowered when pistillate and 18- to 30-flowered 
when staminate: peduncle 1-3 mm. long: scales nearly glabrous. Fruit 
globose, umbonate, 3 mm. in diameter, glabrous: sepals essentially gla- 
brous, closely inflexed.— Plates 48, 49. 
Mexiean tableland, on Arbutus, Quercus, ete.—The type from about 
Real del Monte. 
Specimens examined :—Mexico. Tampico to Real del Monte (Ber- 
landier,—the type of Viscum brachystachyum). Regla (Ehrenberg, 422 
in part). El Sabino, Zimapan (Galeotti, 2692). Aculeingo (Liebmann, 
7, 11, 3083,-Р. flavescens? and P. brachystachyum var., Oliver), Ori- 
zaba (Mueller, 221, 1755). Sta. Fe, Valley of Mexico (Bourgeau, 572). 
Tehuacan (Pringle, 6759, 7027; Endlich, 1899; Rose, Painter & Rose, 
