84 FLORA OF WASHINGTON AND VICINITY. 



t Viburnum dentatum, L. Arrow-wood. 

 Last half of May ; fruit in September. 



Viburnum pubescens, Pnrsh. 



Great Falls and below, where it is abundant, but had been overlooked until dis- 

 covered by Prof. J. H. Comstock, May 22, 1881, at which time it was in fine flower- 

 ing condition. 



t Viburnum acerifolium, L. Maple-leaved Arrow-wood. Dockmackie. 

 Latter part of May ; fruit in September. 



t Triosteum perfoliatum, L Horse-Gentian. Feverwort. 

 First half of June. 



Triosteum angustifolium, L. Smaller Horse-Gentian. 



Corcoran's Woods; Great Falls; High Island. First" week in May. 



Symphoricarpos racemosus, Michx. Snowberry. 

 Eud of May or first of June; fruit last of July. 



t Symphoricarpos t^M^Sram, Michx. Coral-berry. Indian Currant. , 



Latter part of August ; fruit, December and through the winter. 



Lonicera sempervirens, Ait. Trumpet Honeysuckle. 



The yellow-flowered variety is common. First week in June ; fruit, early in July. 



Iionioera Jopomca, Andr. \_L. confusa,'DC.^ Japanese Honeysuckle. 



Well established in many remote places. In a wild state the lower leaves are 

 often found deeply lobed or lyrate. Usually flowers twice, in May and in September 

 or October. 



RUBIACEiE. 



Madder Family. 



t Cephalanthus occidentalis, L. Button-bush. 

 First week in July. 



tHoustonia purpurea, L. Venus's Pride. 



May 10 to June 10. Autumnal flowers, October 13, 1878. 



tHoustonia purpurea, L., var. longifolia, Gray. 



Eocky places ; appears to be a good species. June. Autumnal flowers, September 

 12, 1880. 



tHoustonia caerulea, L. Bluets. 



March and April. Autumnal flowers, September 7, 1879. 



tMitchella repens, L. Partridge-berry. 



First half of June ; fruit, November and persistent throughout the year. 



tDiodia teres, Walt. Button-weed. 

 July. 



Galium Aparine, L. Cleavers. Goose-grass. 

 May. 



Galium asprellum Michx. RouGU Bedstraw. 



Cameron Run. Last of September or first of October. 



