80 SPECIES BLANCOANAE 
his plant was the same as Cyperus caespitosus Poir. of Mada- 
gascar, as described by Sprengel Syst. 1: 221. Naves er- 
roneously reduced it to Cyperus dehiscens Kunth, a species 
that does not extend to the Philippines. From the imperfect 
description and the indicated habitat the form that Llanos de- 
scribed can be nothing else than Cyperus haspan Linn. 
Illustrative specimen from Antipolo, Rizal Province, Luzon, 
October, 1916 (Merrill: Species Blancoanae No. 999). 
PYCREUS Beauvois 
Cyperus strigosus Llanos Frag. Pl. Filip. (1851) 16; F.-Vill. & Naves in 
Blanco Fl. Filip. ed. 8, 4* (1880) 10, non Linn., nec aliorum=PYC- 
REUS ODORATUS (Linn.) Urb. (P. polystachyus Beauv.). 
Cyperus strigosus of Llanos was reduced by Naves to Cyperus 
macrosciadion Steud.—Cyperus radiatus Vahl; but Cyperus 
imbricatus Llanos, op. cit. 17, is unmistakably Cyperus radiatus 
Vahl, and it is improbable that Llanos would describe this 
very characteristic species twice and under separate names. Lla- 
nos’s description agrees at least as well with Pycreus odoratus 
as with any other species, so it is assumed that this is the form 
he intended. It is common and widely distributed in the settled 
areas of the Philippines at low and medium altitudes, in wet — 
lands, along small streams, etc. 
Illustrative specimen from Manila, Luzon, November, 1914 
(Merrill: Species Blancoanae No. 171). 
MARISCUS Vahl 
Cyperus ovatus Llanos Frag. Pl. Filip. (1851) 15 (sp. nov.); F.-Vill. & 
Naves in Blanco Fl. Filip. ed. 3, 47 (1880) 10—=MARISCUS STUP- 
PEUS (Forst.) Merr. in Philip. Journ. Sci. 3 (1908) Bot. 398 (M. 
albescens Gaudich., Cyperus pennatus Lam.). 
This species was reduced by Naves to Cyperus distans Linn., 
a form agreeing with Llanos’s description neither in the char- 
acters indicated by Llanos nor in its habitat. By “esteros” Lla- 
nos certainly means brackish tidal streams, and Mariscus 
stuppeus is the only species growing in such a habitat that at all 
agrees with the description. The statement: “Una hojuela del 
involucro es de cuatro pies de largo” is a false one, no Philippine 
species of the entire family having such a long involucral leaf. 
It is common along the seashore and tidal streams throughout 
the Philippines. 
Illustrative specimen from Manila, Luzon, November, 1914 
(Merrill: Species Blancoanae No. 428). 
Cyperus luzoniensis Llanos Frag. Pl. Filip. (1851) 17 (sp. nov.); F.-Vill. 
& Naves in Blanco Fl. Filip. ed. 3, 4% (1880) 11=MARISCUS DI- 
LUTUS (Vahl) Nees. 
