The Botany of H Ingham. 119 



56. LENTIBULARIACE^3. (BLADDERWORT FAMILY.) 



Aquatic herbs. Represented in Hingham by one genus, the 

 Utricularia. The species are generally immersed, sometimes 

 deeply, and have leaves much dissected, having upon them little 

 bladders which being filled with air cause the plant to bear the 

 flowers above the water. One species, the U. gibba has been 

 found rooted in the marginal mud of a pond. 



The plants have no noxious properties. 



Utricularia, L. 



inflata, Walt. Inflated Bladderwort. 

 vulgaris, L. Greater Bladderwort. 

 gibba, L. Dwarf Bladderwort. 

 intermedia, Hayne. 



57. VERBENACEiE. (VERVAIN FAMILY.) 



Trees, shrubs, and herbs ; with us, herbs only, and confined to 

 two species. The plants of this family are harmless and differ 

 but little from those of the next in general characteristics ; but 

 they lack the aromatic fragrance that makes the Labiatae 

 attractive. 



The Teak wood of India, so renowned for its durability, is the 

 product of a tree of this order, of large dimensions, having a 

 height of about one hundred feet. 



*© 



Verbena, Tourn. 



hastata, L. Blue Vervain, 

 urticaefolia, L. White Vervain. 



58. LABIATiE. (MlNT FAMILY.) 



A family of pleasing and useful herbs ; pleasing by the aroma 

 they exhale and useful in many ways to man. No species is 

 harmful or, as the botanist Wood states, even suspicious. To it 

 belong the Peppermint, Spearmint, Pennyroyal, Sage, Thyme, 

 Lavender, Hoarhound, Catnip, and other well-known herbs. 



The foliage has small glands which secrete a volatile oil that 

 yields the fragrance so marked in most of the species. 



Trichostema, L. 



diehotomum, L. Blue Curls. 

 Teucrium, Tourn. 



Canadense, L. Germander. 



Mentha, Tourn. 



viridis, L. Spearmint. 

 piperita, L. Peppermint. 

 Canadensis, L. Wild Mint. 



