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82 The Philippine Journal of Science 1914 
PISONIA Linnaeus 
PISONIA GRANDIS R. Br. Prodr. (1810) 422. 
Pisonia inermis Forst. f. Prodr. (1786) 897, non Jacq. 
Pisonia excelsa W. F. Wight ex Safford in Contr. U. S. Nat. Herb. 9 
(1905) 356, non Blume. 
G. E. S. 56 (in flower), 393 (in fruit), locally known as amumo. 
Widely distributed in Polynesia. 
This has been interpreted after Seeman Flora Vitiensis 195. The Guam 
plants have prominently armed fruits, while P. excelsa Blume as I under- 
stand it, and as it occurs in the Philippines, has unarmed ones. 
AIZOACEAE 
MOLLUGO Linnaeus 
MOLLUGO PENTAPHYLLA Linn. Sp. Pl. (1753) 89. 
Mollugo stricta Linn. |. c. ed. 2 (1762) 181. 
G. E. S. 418, May 1912, in waste places. 
India to Japan southward to Malaya and Polynesia. 
SESUVIUM Linnaeus 
SESUVIUM PORTULACASTRUM Linn. Syst. Nat. ed. 10 (1759) 1068. 
Portulaca portulacastrum Linn. Sp. Pl. (1753) 446, Herb. Amb. 
(1754) 28. 
G. E. S. 228, along the seashore, local name chara. 
Tropical and subtropical seashores of both hemispheres. 
Mr. W. F. Wight ™ credits the name Sesuvium portulacastrum to Stick- 
man rather than to Linnaeus, citing Stickman’s Herbarium Amboinense 
(1754), page not indicated, as the place of publication. The species appears 
in Stickman’s paper as Portulaca portulacastrum, on page 28, not as 
Sesuvium. Sesuvium portulacastrum, however, does appear in Linnaeus’ 
reprint of Stickman’s paper,” but in this case the authority is Linnaeus, 
not Stickman. 
PORTULACACEAE 
PORTULACA Linnaeus 
PORTULACA OLERACEA Linn. Sp. Pl. (1758) 445; Safford 359. 
G. E. S. 226. 
In all temperate and tropical regions. 
PORTULACA QUADRIFIDA Linn. Mant. 1 (1767) 73; Safford 359. 
McGregor 685. 
Widely distributed in the tropics of the Old World. 
CERATOPHYLLACEAE 
CERATOPHYLLUM Linnaeus 
CERATOPHYLLUM DEMERSUM Linn. Sp. Pl. (1753) 992. 
McGregor 425, Agafia River. 
In fresh water in the temperate and tropical regions of both hemispheres. 
* Contr. U. S. Nat. Herb. 9 (1905) 878. 
* Linn. Amoen. Acad. 4 (1759) 136. 
