TRbooora 
JOURNAL OF 
THE NEW ENGLAND BOTANICAL CLUB 
Vol. 26. January, 1924. No. 301. 
SOME CHANGES IN NOMENCLATURE. 
K. M. WIEGAND. 
DvniNc the progress of work on the flora of the central portion of 
New York State a number of changes in nomenclature have been 
found necessary. It has seemed desirable to bring these together 
and publish them as a group. | 
TYPHA ANGUSTIFOLIA L., var elongata (Dudley), comb. nov. T. 
latifolia, var. elongata Dudley, Cayuga Flora (Bull. Cornell Univ., 
Science ii. 102, 1886). T. angustifolia, var. longispicata Peck, Rep. 
N. Y. State Bot. xlvii. 162 or 36 (1894). T. angustifolia, var. virginica 
Tidestrom, Rnopona xiii. 242 (1911). 
Dudley's type has not been seen, but the plant occurring in “large 
thick masses near the shore or in the water on Canoga and Cayuga 
Marshes and north of Hill's Branch” is this plant. It is the most 
abundant form of Typha on the Montezuma Marshes, in the bogs at 
the east end of Lake Ontario and along the St. Lawrence River at ` 
least as far north as Ogdensburg. It also occurs about Oneida Lake. 
Typical 7. angustifolia is 1-1.5 m. high with lower leaves 3-7 mm. 
wide and pistillate spike in fruit, 8-13 cm. by 10-17 mm. In var. 
elongata the height is 2-3.5 m., lower leaves 9-15 mm. broad and pistil- 
late spikes 15-25 (30) cm. by 20-23 mm. 
MUHLENBERGIA MEXICANA (L.) Trin., forma commutata (Scribn.), 
forma nov. M. mexicana, subsp. commutata Scribn. RHODORA ix. 
18 (1907). M. mezicana, var. commutata Farwell, Rep. Mich. Acad. 
Sci. xvii. 181 (1916). 
MUHLENBERGIA FOLIOSA Trin., forma ambigua (Torrey), forma 
nov. M. ambigua Torr. Nicollet's Rep. 164 or 237 (1843). M. 
foliosa, subsp. ambigua Scribn. Rnopona ix. 20 (1907). 
