409 



Habenaria orbiculata, Pursb. 



psy codes, Sprengel. 



tridentata, Hooker. 

 Hamameh's virginica, Linn. Witch hazel. 

 Hedeoma pulegioides, Person. Pennyroyal. 

 Helenium autuninale, Linn. 

 Helianthemum canadense, Mx. Rock rose. 

 Helianthus altissiraus, Linn. 



divaricatus? Linn. 



frondosus, Ww. 



giganteus, Linn. 



gracilis. 



strumosus, Linn. 



trachelifolius, Ww. 

 Heliopsis laevis, Persoon. 

 Hepatica aciitiloba, D. C. 



Americana, D. C. Liverwort. 

 Heracleum lanatum, Mx. Master-wort. Cow parsnep. 

 Heuchera Americana, Linn. Alum root. 

 Hibiscus trionum, Linn. 

 Hieracium gronovii, Linn. 



kahnii, Linn. 



marianum, Ww. 



paniculatum, Linn. 



fecouleri, Hedwig. 



venosum, Linn. Blood-wort. 

 Hippophae canadensis, Ww. Sea buckthorn. 

 Hippuris vulgaris, Linn. 

 Houstonia ciliolata, Torrey. 



Hydrastis canadensis, Linn. Golden seal. Yellow-root. 

 Hydrocotyle umbellata, Linn. 

 Hydropeltis purpurea, Mx, Water shield. 

 Hydrophylluin canadense, Linn. Rough burr-flower. 



virginicum, Linn. Burr-tiower. 

 Hypericum ascyroides, Ww. 



canadense, Linn. 



parvitlorum, Ww. 

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