IX, C, 2 Merrill: The Plants of Guam 103 
numerous, scattered, pale-yellow glands in small pits, when young 
more or less pubescent on the nerves and reticulations, in age 
nearly glabrous; petioles 10 to 14 cm long; stipules lanceolate, 
nearly glabrous, acuminate, 2 to 3 cm long, deciduous, Male 
panicles axillary, about 16 cm long, narrowly pyramidal, many- 
flowered, the lower branches 3 cm long or less, the upper 
gradually shorter, the bracts wanting. Flowers sessile or sub- 
sessile, glomerate, densely arranged on the ultimate branches. 
Sepals 2 or 3, oblong to obovate, 1 to 1.2 mm long, obtuse or 
acute, somewhat pubescent. Stamens 4 or 5; filaments 1 to 1.2 
mm long; anthers 3- and 4-locellate, small, about 0.2 mm long. 
Guam Experiment Station 472, no data recorded with the specimen. 
The first representative of the genus to be reported from the Marianne 
Islands, well characterized by its very broad, widely peltate, entire, glan- 
dular, nearly glabrous leaves, and its ebracteate staminate panicles. 
Named in honor of Mr. J. B. Thompson, Director of the Guam Experiment 
Station, through whose interest much of our Guam botanical material has 
been secured. , 
MALLOTUS Loureiro 
MALLOTUS MOLUCCANUS (Linn.) Muell.-Arg. in Linnaea 24 (1865) 
185, var. GLABRATUS Muell.-Arg. in DC. Prodr. 157% (1866) 958. 
Croton moluccanum Linn. Sp. Pl. (1753) 1005. 
Echinus sp. Safford in Contr. U. S. Nat. Herb. 9 (1905) 265. 
McGregor 402, G. E. S. 298, locally known as alom or alum. 
Widely distributed in the Malayan region. 
As to the propriety of retaining the above specific name for this species, 
there may be some doubt, for Croton moluccanum Linn., as to the first 
citation given by Linnaeus, is Givotia rottleriformis Griff.,* as to the second, 
apparently, and as to the specimen in the Linnean Herbarium it is Mallotus 
moluccanus Muell.-Arg. I have retained the Linnean species in the sense 
that Mueller and other authors have interpreted it. . 
MANIHOT Tournefort 
MANIHOT UTILISSIMA Pohl Pl. Bras. Ic. 1 (1827) 32, t. 24. 
Jatropha manihot Linn. Sp. Pl. (1753) 1007. 
Manihot manihot Karst. Deutsch. Fl. (1880-83) 588; Safford 316. 
G. E. S. 249, 250, locally known as mendioka amarilla, and mendioka 
saipan. 
A native of tropical America, now cultivated in all tropical countries. 
PHYLLANTHUS Linnaeus 
PHYLLANTHUS MARIANUS Muell.-Arg. in Linnaea 32 (1863) 17; DC. 
Prodr. 15* (1866) 357; Safford 351. 
McGregor 427, at Agana. 
A species known only from Guam. 
* Trimen Fl. Ceyl.4 (1898) 51. 
