Part 186 (1/2)

[+] 2. _Ovales._ Spikes tawny or dark, rather large, sometimes crowded; perigynium with a more or less thin or winged margin, which is mostly incurved at maturity, rendering the perigynium concave inside.--Sp.

125--132.

[+] 3. _Cyperoideae._ Spikes green, oblong, densely crowded into a short head subtended by two or three leafy bracts which are erect and prolonged from six inches to a foot; perigynium linear-lanceolate, scarcely margined.--Sp. 133.

Artificial Key.

Spike 1, staminate at top; scales of pistillate flowers leaf-like Sp. 93-95

Spike 1, scales not leaf-like.

Usually dicious, stigma 2 115-117

Stigmas 3.--

Perigynium densely hairy 84

Spike staminate at base; perigynia squarrose 21

Spike staminate at top.--

Globose; leaves broad 97

Perigynium nearly linear, beakless 96

Perigynium long, spindle-shaped 1

Spikes several or numerous, sessile, spicate or capitate; stigmas 2.

All in a globose or ovoid uninterrupted head.

All staminate above.--

Usually green at maturity 112, 114

Usually yellow or tawny or brown 98, 99, 104, 105

All staminate below.--

Leafy-bracteate 133

Not leafy-bracteate.--

Green 118-120

Usually tawny or brown 125-132

Some or all of the spikes distinct or the head interrupted.

Staminate and pistillate flowers variously disposed, some of the spikes often unis.e.xual.