BOBEALES 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, 

 dioecious?. Internodes rather long (2-3x50-60 mm.), rather evanescently 

 and sparsely short-villous or puberulent like the foliage. Leaves sub- 

 spatulately oblong, sometimes falcate, subacute, .5-.8x3.5-4.5 cm., 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: MEXICO. Mazatlan, Sinaloa (Gregg, 1202, 

 1849, the type). 



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 (3x60 mm.), some- 

 M r hat varnished, evanescently hispid like the foliage. Leaves extremely 

 variable even on the same shoot, from typically oblong-lanceolate or ob- 

 lanceolate to obovate or orbicular, the narrower forms more or less fal- 

 cate, obtuse, .5x3.5, 1.5-2x5, or 1.5x1.5 cm., cuneately 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. 



Mexican tableland, on Arbutus, Quercus, etc. 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). Aculcingo (Liebmann, 

 7, 11, 3083, P. 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, 



