26 Tennessee Flora. 



very frequent in the bottoms. One of the showiest shrubs of this 

 region, the lately-discovered Hypericum lohocarpum, which would 

 make a splendid adornment of every garden, grows copiously 

 around Hollow Eock. It makes a flat-topped bush from six to 

 eight feet high. In the swamps float the water shields (Brasenia 

 pcUata and Cahomha CaroUnmna), while the water chinquapin 

 (Nelumbo lutea) rears its big, peltate foliage and large, sulphur- 

 yellow flowers high above the brownish waters of the lagoon. 



Of other frequent aqilatics I may only mention the Limnanthe- 

 rnum laciinosum. Ranunculus multifidus, Utriculatia biflora. Spe- 

 cies of Lcmna, Wolffia, and the neat Azolla cast a green veil over 

 the quiet pools. The Indian rye (Zizania aquatica), a tall grass, 

 which the Indians used to harvest, using the grains for meal, is 

 here in its proper sphere, and its tall heads look down upon patches 

 of sword lilies. Iris cuprea, and Iris hexagona; and all the swampy 

 flats are filled with Scirpus dehilis, Carices, and Rhynchosporas. 



On higher grounds congregate Dalea alopecuroides, Galium Ar- 

 hansanum, Eryngium prostratum, Marshallia lanccolata, Ambrosia 

 bidcntata, Hehnium tenuifoUum, Seneci-o lobatus, Hydrolea af- 

 finis. Verbena stricta, Polypremum procumbens, Stillingiu syl- 

 vatica, Lithospermum angustifolium, Habenarm virescens, Juncus 

 militaris, Spartina cynosuroides, Aristida ramosissima. 



From the suburbs of Memphis I received the elegant Erogrostis 

 oxylepis. On the sandy shores of the Mississippi River abounds a 

 species of horsetail, the Equisetum robustum, and the invidious 

 burgrass that sticks to clothing and spoils the vlieses of the sheep 

 with its sticky spikes. (Cenchrus tribuloides.) 



