MONOCOTYLES. 91 



base amplexic. subalternate, spadix large ellip- 

 tic, leaves 4 inches long, 3 broad. This shall 

 form my subg. Callaion. 



486. TYPHA CRASSA Raf. atl. J. p. 148. lati- 

 folia of Arner. bot. not L. stem humble foliose, 

 leaves equal to stem, flat above, convex be- 

 neath at the base and not vaginate, end obtuse, 

 spikes united and thick subequal, a bract be- 

 tween them ovate lanceol. membranaceous 

 Canada to Maryland and Missouri. Stem only 

 3 to 4 feet high, spikes 4 to 6 inches long, one 

 inch thick, lower brown very dense, leaves half 

 inch bmad. In marshes as all the sp. 



487. TYPHA ELATIOR Raf. atl. J. p. 148. la- 

 tifolia Elliot and Southern botanists not L. stem 

 gigantic, leaves shorter broad flat base vagi- 

 nate, end acute, spikes confluent terete without 

 spatha Carolina to Kentucky, 6 to 10 feet 

 high, stem round solid and smooth, leaves one 

 inch broad. These 2 sp. are certainly differ- 

 ent from the latifolia of Europe. 



488. TYPHA SPIRALIS Raf. atl. J. p. 148, ia- 

 tifolia Sw. Lunan <^c. Leaves spiraly contor- 

 ted, ensiform and vaginate at the base, end flat 

 thick obtuse, spikes annexed each with a spa- 

 tha Florida, Cuba and Jamaica, mistaken 

 also there for the latifolia, different from T. do- 

 mingensis. 



489. TYPHA GRACILIS Raf. angustifolia of 

 Amer. bot. not L. stein slender, leaves equal 

 narrow flat glaucous acute, beneath hardly con- 

 vex and striated, spikes subequtil slender wide- 

 ly divided without spathas New Jersey to Vir- 

 ginia in marshes and near streams, 4 to 6 in- 

 ches long, divided by a bare space of 2 or 3 

 inches. 



490. TYPHA ANGTJSTIFOLIA L. <c. My spe- 

 cimens of this European sp. differ from the last 



