21974, Viburnum luzonicum apoense Elm. Several stemmed shrubs in deep 
ravine; wood dingy white, the smooth bark brownish; leaves slightly greener 
above, tips recurved; inflorescence erect, the flowers pale white. Mt. 
Pinatubo, April to June, 1927. Caprif. 
21975. Buddleia asiatica Lour. Shrubs in or along stony river beds; 
soft stems covered with brown shredded bark; leaves descendingly recurved; 
spikes grayish, subpendant. Mt. Pinatubo, April to June, 1927. Logan. 
21976. Boehmeria multiflora C.B. Rob. Low shrub in stony river beds; 
Stems with brown bark; leaves descending, lighter green beneath; spikes 
erect or nearly so, reddish brown. Mt. Pinatubo, April to June, 1927. 
Urtic. 
21977. Pipturus arborescens (Link.). Shrubs in stony river bottoms; 
wood soft; the tough bark brown and lenticelled; leaves descending, much 
lighter green beneath; the inflorescence pale or yellowish green. Mt. Pina- 
tubo, April to June, 1927. Urtic. 
21978. Mussaenda microphylla Elm. n. sp. Among shrubs in hot or dry 
river embankments; wood rather tough, dingy white, the brown bark smooth; 
leaves paler beneath, curvingly folded upon the upper side; inflorescence 
greenish except the yellow corolla segments and white horizontally spreading 
bracts. Mt. Pinatubo, April to June, 1927. Rub. 
21979. [No name.] Erect, densely covering stones in the river bed, 
rather dry and brittle, grayish and with blackish black spore disks. Mt, 
Pinatubo, April to June, 1927. Crypt. 
21980. Ficus merrillii Elm. A crookedly stemmed tree with an 8 inch 
thick stem; the wood sappy white, the bark grayish white and smooth; in 
densely forested gulches; tubercles toward the stem ground, 1 to 2 yards 
long, hanging, laxly rebranched; the figs dark green, with brown lenticels, 
pl 1/2 inch thick; latex present. Mt. Pinatubo, April to June, 1927. 
orac. 
21981. [No name.] On host number 21980: Ficus merrillii. Mt. Pina- 
tubo, April to June, 1927. Crypt. 
21982. Carionia elegans Naud. Erect shrubs in alpine shrubberies and 
along the river; wood reddish tinged toward the center, quite hard; brown 
bark coarsely lenticelled; leaves ascending, pale yellowish green beneath, 
velvety dark green upon the upper conduplicate side, tips recurved; the erect 
inflorescence reddish brown tinged, the showy petals pink or rose red. Mt. 
Pinatubo, April to June, 1927. Melast. 

