94 BULLETIN 1380, U. S. DEPARTMENT OF AGRICULTURE 
to elongate, crowded, usually arranged in one row, the punctiform black 
ostiola slightly projecting; asci not seen, but given as cylindrical pedicel- 
late. 8-spored, 250 by 10 m ; spores broad cymbiform to fusoid, frequently 
with small knob at the ends, translucent, light brown to opaque dark 
brown, 27 to 36 by 9 to 12 /x. On roots and stems of living trees, causing 
cankers, Amazon region, the Orient. Van Overeem and Steinmann consider 
that U. zonata (Lev.) Sacc. from Java and the cosmopolitan U. vulgaris 
Till, of temperate regions are identical and tbat by reason of priority it 
should be called U. maxima (Weber) v. Wettet. 
V. sp. Stroma superficial, extensively effused, pulvinate, 5 to 8 millimeters 
thick, broadly or centrally attached to substratum by a conspicuous light 
grayish subiculum in which are embedded black horny fibers, edges ob- 
tuse; surface fissured, not concentrically zoned, white then gray-brown, ap- 
parently never black ; ostiola black, erumpent, conspicuous ; perithecia 
cylindrical ; asci and spores not observed. A very conspicuous species 
found on dead roots of living stumps, Madeira and Amazon Rivers. 
Venturia emergens Fetch. On branches, Ceylon. 
Vermicularia dematium (Pers.) Fr. On stems of seedlings, Ceylon. 
I erticillium sp. On hark. Ceylon. 
Xylaria berkeleyi Mont. On dead fallen branches. Amazon region. 
A', cynoglossa Cke. On dead root, Malay Peninsula. 
X. obovata Berk. On dead wood, Malay Peninsula. 
X. scopiformis Mont. On dead stems, Amazon region, Singapore. 
X. scopiformis Mont. var. heveana Sacc. On stumps. Malay Peninsula. 
X. tabacina (Kickx) Berk. On dead wood, Amazon region. 
X. thtoaitesU Berk, and Cke. Root disease. Ceylon. 
X. tuber if oralis Berk. Stumps. Singapore. 
Zukaliopsis Heveae Fetch. On leaves. Ceylon. 
Zygosporium paraense Vincons. Setae attenuated upward, brown, lighter color 
at swollen apex, 30 to 50 m high, 3 to 5 ll in diameter ; basidia brown, 12 
to 15 n long, 6 to 8 fi broad, 4 to 6 n thick, 2-spored ; conidia elliptic, 
slightly colored, 7 to 9 by 4 to G fx. On leaves, Para, Amazon region. 
MISTLETOES ON HEVEA 
Dendrophthora poeppigii V. Tiegh. Monoecious; branches leafless, terete, 
smooth, olivaceous or yellowish green, internodes 2 to 9 centimeters long: 
branch scales spreading, acute, about 1 millimeter long ; flower spikes 
yellowish, terminal and solitary in the axils of the scales, 0.5 to 2 centi- 
meters long, with peduncles 2 to 7 millimeters long, 2 to 5 articulate, 
segments slightly enlarged above, lower segments up to 3 millimeters 
long, 2 to 4 flowered, upper segments shorter, terminal segment 4 to 6 
flowered; flowers except on terminal segment uniseriate, upper ones of 
each segment male, lower or rarely all female ; anthers sessile and fixed 
to the base of the perianth of lobes, unilocular, with one or more pollen 
sacs : fruit globular, pinkish, surrounded at the base by the slightly 
extended margin of the pit. On Hevea bra.silicnsis, Amazon Valley. This 
species was apparently first described by Van Tieghem in 1896 from ma- 
terial collected by Foeppig in the Amazon region, but no mention was made 
of its host. It was more fully described by Urban in 1898. Ule recorded 
the species on Hevea brasiliensis from Marary, Jurua, in 1900. This author 
states that it is common along the Jurua, Madeira, and Amazon Rivers. 
D. heveicola Ule is apparently the same species, but the description is 
inadequate. The plant could easily be mistaken for a leafless Phora- 
dendron. According to Eichler the genus Phoradendron is distinguished 
by bilocular anthers opening separately by longitudinal slits and by flowers 
arranged on the spikes in several longitudinal rows. Dendrophthora has 
unilocular anthers opening by a single transverse slit, and the flowers are 
in a single longitudinal row. Van Tieghem, however, states that the 
arrangement of flowers may vary. There are pluriseriate Dendrophthoras 
and possibly uniseriate Phoradendrons. Therefore the structure of the 
anthers constitutes the real difference between the genera. 
Elytranthe globosa Blume. Malay Peninsula. 
Loranthus ferrugineus Roxb. Malay Peninsula. 
Loranthas pentandrus L. Malay Peninsula. 
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