TETRANDRIA.— TETRAGYNIA. 3T 



B. parvifolia : leaves oblong-ovate, upper part undu- 

 lately and coarsely crenate ; under surface pubes- 

 cent, somewhat hirsute ; segments of the calyx 

 oblong ; stamens and perigynous filaments often 

 nearly equal. 



HAB. Mountains. Smaller than the preceding : jl. 

 bright yellow. 



TETRAGYNIA. 



129. ILEX. Rhamni. Holly. 



). I, opaca : leaves ovate, spinous, acute, smooth, flat ; 

 fascicles of flowers loose, on the base of the young- 

 er branches ; peduncles compound. 

 HAB. Sandy woods. June. An er:rgreen tree. 

 10 — 40/i!. high ; leav. coriaceous, shining ; Jl. yell.- 

 white ; berries red. 



2. I. canadensis : leaves deciduous, ovate, very entire, 

 smooth ; peduncles subsolitary, (or fasciculate,) 

 very long, 1 -flowered ; fruit obtusely subquad- 

 rangular. 

 HAB. Rocky hills and mountains. May — June. 

 Shrub 3 — 5 ft. high; leav. mucron. ; Jl. dioec. 

 minute ; berries red. 



130. TILLiEA. 



T. simplex : stem erect and simple ; leaves connate, 

 oblong-linear and somewhat acute ; flowers alter- 

 nate, sessile ; petals erect, twice as long as the calyx. 



HAB. Muddy banks of rivers. 0. Plant minute. 



131. SAG1NA. Caryophyllcai. Pearl-wort. 

 1. S. procumbens : perennial ; stem procumbent. 



smooth ; petals very short. 

 HAB. Near springs. 'July. Spreading, 2 — 4 in. 



long ; leav. linear-subul. ; pel. son^etimes wanting. 

 3. apetala : annual; stem erect, pubt scent ; leaves 



cuspidate : flowers alternate ; petals very minute 



or 0. 

 HAB. Sandy fields. May — June. Stems numerous 



filif. ; leav. subnl. ; Jl. on long pedunc. 



