FERNALD. — CARICES OF SECTION HYPARRHENAR, 513 
EXPLANATION OF PLATES.1 
Prate I. 
Carex muskingumensis: Fig. 1, spike ; a 2, rds shgioren 
C. scoparia: Fig. 3, spike; Fig. 4, perigyn 
C. scoparia, var. condensa : Fig. 5, spike. 
C. tribuloides : Fig. 6, spike ; Fig. 7, perigynium. 
C. tribuloides, var. reducta: Fig. 8, spike. 
C. cristata: Fig. 19, spike ; Figs. 20, 21, oeievate. 
C. albolutescens : Figs. 22, 23, spikes ; Fig. 24, perigynium. 
Puate II. 
C. mirabilis : Fig. 25, spike ; Fig. 26, perigynium. 
C. mirabilis, var. perlonga : Fig. 27, spike. 
C. straminea : Fig. 28, spike ; Fig. ae dns dpa 
C. straminea, var. echinodes : Fig. 8 
C. tenera: Fig. 31, spike; Fig. he 
C. tenera, var. Richii: Fig. 33, ssrhthaat ikea: Fig. 34, perigynium. 
C. tenera, var. invisa: Figs. 35, 36, spikes. 
C. Bicknellii : Figs. 37, 38, spikes ; Figs. 89, 40, perigynia. 
C. silicea: Fig. 41, spike; Fig. 42, perigynium. 
C. alata: Fig. 48, spike ; Fig. 44, perigynium. 
C. alata, var. ferruginea: Fig. 45, spike ; Fig. 46, perigynium. 
Prate III. 
C. festucacea : Fig. 47, spike ; Fig. 48, perigyni 
C. festucacea, var. brevior : Figs. 49, 50, stent Fig. 51, perigynium. 
C. Bebbii : Fig. 52, spike ; Fig. 53, deter 
C. foenea : Fig. 54, spike ; Fig. 55, perigy 
C. foenea, var. perplexa: Fig. 56, spike ; Fig. ‘ST, perigynium. 
1The plates illustrating this synopsis were prepared by Mr. F. Schuyler 
Mathews from characteristic specimens. ‘The figures of the spikes represent 
life-sized individuals, while those showing the inner faces of the perigynia are 
four times as large as in nature. 
VOL. XxXV¥i1,.— 33 
