Carex brevior (Dew.) Mack. ex Lunell, Short-beaked Sedge (Section OVALES)
Carex brevior seems to be sparse in Renfrew County. It is often lumped with C. merritt-fernaldii and most records in CAN and DAO require confirmation. A few have been confirmed and these have been mapped. I separate C. brevior from C. merritt-fernaldii by the perigynia features. Figure 5 shows that the perigynia of C. merritt-fernaldii are thin, translucent and erose along the distal margins. The perigynia of C. brevior are thick, opaque and with firm margins. More information about the features that separate C. merritt-fernaldii and C. brevior can be found in [Rothrock and Reznicek, 2001] or the FNA website (http://floranorthamerica.org/).
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Figure 1. Achenes, perigynia and scales.
Figure 2. Inflorescences.
Figure 3. Inflorescences.
Figure 4. Inflorescence.
Figure 5. Comparison of Carex brevior and Carex merritt-fernaldii perigynia.
Figure 6. Comparison of Carex brevior and Carex merritt-fernaldii inflorescences.
Figure 7. Occurence map for Renfrew County and surrounding area.
| Accession # | Collector | Date |
|---|---|---|
| DAO 669385 | A. Vogg | 1993-September-28 |
| DAO 452171 | D.F. Brunton | 1985-June-10 |