Class 2 . ANGIOSPERMAE. 
Subclass 1. MONOCOTYLEDONES. 
Order 9. PANDANALES. 
Flowers in elongated terminal spikes; fruit hidden among bristles. 
Fam. 11. Typhaceae. 
Flowers in globose lateral spikes; fruit not hidden among bristles. 
Fam. 12. Sparganiaceae. 
Family 11. TYPHACEAE J. St. Hil. Cat-tail Family. 
1. TYPHA L. Cat-tails. 
1. Typha latifolia L. In marshes, lakes and streams from Newf. to Wash., 
Fla. and Calif.; also Mex., Asia and Europe.—Alt. 4000-6000 ft.—Pagosa 
Springs; Ft. Collins; common in swamps formed by irrigation. 
Family 12. SPARGANIACEAE Agard. Bur-reed Family. 
1. SPARGANIUM L. Bur-reed. 
Leaves triangular-keeled at the base. 
Mature achenes truncate at the apex, stalked; stigmas often 2. 
1. 5 '. eurocarpum. 
Mature achenes acuminate at the apex, sessile; stigma always solitary; lower 
heads peduncled. 2. S. multipedunculatum. 
Leaves flat throughout, mostly floating. 
Mature heads 12-15 mm. in diameter; style and stigma of about the same 
length as the achenes. 3. S. angustifolium. 
Mature heads 7-10 mm. in diameter; style and stigma shorter than the achenes. 
4. S. minimum. 
1. Sparganium eurocarpum Engelm. In marshes and slow streams from 
Newf. to Wash., Fla. and Calif.—Alt. 4000-5500 ft.—Along Platte River, 
Denver. 
2. Sparganium multipedunculatum (Morong) Rydb. (S. simplex multi¬ 
pedunculatum Morong) In marshes, slow streams and lakes, from the 
Mackenzie River to Wash, and Colo.—Alt. 6500-10,500 ft.—Gunnison; Cot¬ 
tonwood Lake; Kremmling; West Cliff; margin of lake, Buffalo Pass, Park 
Range; Estes Park; eight miles west of Hebron. 
3. Sparganium angustifolium Michx. In lakes and streams from Newf. to 
Ore., N. Y. and Calif.—Alt. 8500-11,500 ft.—Near Pagosa Peak; Seven Lakes; 
Trapper’s Lake; Estes Park. 
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