602 MACKENZIE: NOTES ON CAR&X 
Stanford, Jr., University (abbreviated ‘‘L. S.’’), S. B. Parish, 
E. Brainerd, Columbia College (abbreviated ‘‘C.’’) and New York 
Botanical Garden (abbreviated ‘“‘N. Y.”’), and the new species 
described below are in these collections, as indicated, or in my 
own herbarium (abbreviated ‘““K. M.” 
A key covering all members of the Ovales known to me from 
California is given immediately below, and this is followed by 
descriptions of the new species proposed. 
I. Beak of perigynium flat and serrulate to tip. 
Sheaths slapeate ge opposite blades 
r sheaths (at least) strongly sconmieee upward op- 
oe point of insertion of blade, the prolongation very 
m 
ranaceous. 
Sheaths not prolonged upward opposite point of insertion 
of blade. 
sara thin with margins conspicuously wrinkled 
orsally; culms 1-3.5 dm. high; spikes ovoid, 
ake capitate. 
Perigynia thick with margins not wrinkled dorsally; 
: culms 6-9 dm. high; spikes oblong in an oblong 
head. 
Sheaths green striate opposite blades, except at mouth. 
II. Beak of perigynium terete towards apex, the upper I-3 mm., 
smooth or nearly so 
A. Perigynia appressed, nearly or entirely covered by scales, 
the tips of the beaks not conspicuous in the spikes. 
Culms slender; spikes in a flexuous nodding head. 
ulms stiff; spikes approximate in an erect head. 
Culms 1-6 dm. high, the leaves not bunched near base; 
blades 2-3 mm. wide, flat; beak of perigynium not 
hyaline at orifice. 
Culms 1~3 dm. high, the leaves bunched near base; 
1.5-2 mm. wide, more or less involute; 
perigynium beak hyaline at orifice. 
Perigynia oblong-ovate, rather strongly margined. 
Perigynis linear-lanceolate, very narrowly mar- 
gined, boat-shaped. 
B. Upper ee of perigynia conspicuous, not covered by 
(a) Petigs tis lanceolate, 5.5-8.5 mm. in length, 3-5 times 
as long as wide. 
Spikes about 3, not capitate; scales little more than 
half length of perigynia. 
Spikes 6-12, capitate; scales equalling bodies of peri- 
(b) Perigynia ovate or lanceolate; if lanceolate shorter 
than 5.5 mm. in length. 
C. specifica. 
C. straminiformis. 
C. multicostata. 
C. feta 
C. praticola. 
C. leporina. 
C. phaeocephala- 
C. leporinella. 
C. Davyi. 
C. lancifructus. 
