AEQUATORIALES—ROBUSTISSIMAE 77 
= Phoradendron; vulcanicum n. sp. 
Somewhat pseudodichotomous, the moderate branches with basal eata- 
phyls only, androgynous?. Internodes moderate, (2-5x40-70 mm.), 
smooth, somewhat compressed and dilated below the nodes but not angu- 
lar. Cataphyls a single nearly basal pair, aeute. Leaves broadly ellip- 
tieal to ovate or obovate, very obtuse, 2.5-3x4-6.5 em., rather abruptly 
petioled for about 5 mm. Spikes mostly clustered, short (10 mm.), with 
2 or 3 short joints some 10-flowered in 4+2 series: peduncle nearly sup- 
pressed. Fruit?.— Plate 99. 
Guatemalan region (? exclusively) on Leguminosae.— The type from 
Acatenango. 
Specimens examined :—GUATEMALA. Volcan Acatenango, Sacatepe- 
quez (Kellerman, 4829, Feb. 20, 1905,—the type). Volean Fuego, Saca- 
tepequez (Kellerman, 4551). 
Phoradendron crispum n. sp. 
More or less verticillate, the moderate branches with basal eataphyls 
only, androgynous?. Internodes rather short (2-3x40 mm.), smooth, es- 
sentially terete. Cataphyls a single pair, 10-20 mm. above the base, short 
and spreading. Leaves round-obovate, much crisped in drying, very ob- 
tuse, 1.5-2.5x3-5 cm., rather abruptly petioled for about 5 mm. Spikes: 
mostly solitary, short (15 mm.), with 2 or 3 short rather slender joints 
some 16- to 20-flowered in 44-2 series: peduncle 2 mm. long. Fruit ?.— 
Plate 99, 
Isthmian region (? exelusively) on Myrtaceae.—The type from Costa 
Rica. 
Specimens examined :—Costa Rica. Locality? (Pittier, 14117, Dec. 
31, 1900,—the type). Volcan de Poas (Pittier, 816). 
У 
18. ROBUSTISSIMAE. 
Leaves rather large and broad, thiek, dull and obseurely basinerved. 
Shoots 2-edged or terete. Cataphyls usually a single pair, on the basal 
joint only. Flowers in 4, 4+2 or 6 series. Fruit nearly round, smooth, 
with elosed sepals. Mountain regions of Mexieo and Central America. 
Internodes for a time strongly 2-edged : leaves ovate- 
laneeolate. P. Reichenbachianum. 
Internodes not 2-edged. 
Leaves elliptical. P. robustissimum. 
Leaves lanceolate. P. falcifolium. 
