Cyperaceae.
#25 from previous lab: Scirpus microcarpus.
153. Eleocharis palustris.
154. Schoenoplectus acutus.
155. Cyperus esculentus (not known from Montana but widespread in North America).
156. Cyperus schweinitzii (permanent mount).
157. Eriophorum chamissonis (permanent mount).
158. Carex filifolia.
159. Carex athrostachya.
160. Carex nebrascensis.
#24 from previous lab: Carex utriculata.
Juncaceae.
#26 from previous lab: Juncus balticus.
161. Juncus ensifolius.
162. Juncus tenuis.
163. Luzula parviflora.
164. Luzula spicata.
Typhaceae.
#27 from previous lab: Typha latifolia.
165. Typha angustifolia (permanent mount).