122 Rhodora 
Oenothera biennis L. 
Kneiffia pumila (L.) Spach. 
Aralia hispida Vent. 
Cicuta bulbifera L. 
maculata L. 
Sium cicutaefolium Gmel. 
Cornus Amonum Mill. 
Clethra alnifolia L. 
Chimaphila umbellata (L.) Nutt. 
A maculata (L.) Pursh. 
Rhododendron nudiflorum (L.) Torr. 
Kalmia latifolia L. 
Lysimachia quadrifolia L. 
Bartonia virginica (L.) BSP. 
Asclepias pulchra Ehrh. 
Verbena hastata L. 
Scutellaria lateriflora L. 
Brunella vulgaris L. 
Koellia virginiana (L.) Mac M. 
Lycopus americanus Muhl. 
* virginicus L. 
Mentha arvensis L. 
PROVIDENCE, RHODE ISLAND. 
(JULY 
Ilysanthes attenuata (Muhl.) Small. 
" gratioloides (L.) Benth. 
Gerardia paupercula (Gray) Britton. 
ox purpurea L. 
Plantago aristata Michx. 
Cephalanthus occidentalis L. 
Galium asprellum Michx. 
Viburnum cassinoides L. 
T dentatum L. 
Campanula aparinoides Pursh. 
Lobelia cardinalis L. 
“ inflata L. 
Vernonia noveboracensis (L.) Willd. 
Chrysopsis falcata (Pursh) El. 
Solidago odora Ait. 
S puberula Nutt. 
' ulignosa Nutt. 
Anaphalis margaritacea (L.) B. & H. 
Leontodon autumnale L. 
Hieracium Gronovii L. 
yji scabrum Michx. 
THE RETROGRADE COLOR VARIETIES OF 
GRATIOLA AUREA. 
HARLEY HARRIS BARTLETT. 
AT Winter Pond in Winchester, Massachusetts, occurs one of the 
most typical examples of what Blankinship designates in his “‘ Plant- 
formations of Eastern Massachusetts" as the ** Sand-Pond Margin 
Formation." Its flora is here unusually well developed, containing 
in addition to the plants enumerated by Blankinship about twenty 
others, equally characteristic of the formation. One of these, Gratiola 
aurea Muhl., occupies considerable areas of the low, gravelly shore, 
frequently to the almost complete exclusion of other plants. It occurs 
here not only in its typical golden-yellow-flowered form, but also in 
two well marked color forms the flowers of which are respectively 
honey-yellow and white. 
