Bulletin - United States National Museum - Smithsonian Institution

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 discovered
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.