CISTACE^E ROCK-ROSE FAMILY 



DOWNY HUDSONIA 

 Hudsbnia tomentbsa. 



Named in honor of William Hudson, a London apothecary, 

 the author of Flora Angelica, published in 1762. 



A small, bushy, hoary-pubescent undershrub, growing in 

 thick matted patches, rising but a few inches from the ground ; 

 erect or slightly bent. Found oftenest on the sandy plains 

 along the shore from Maine to Maryland ; especially abundant 

 in New Jersey ; also found along the border of the Great Lakes. 

 It has a creeping underground stem which throws out many 

 roots, branching with threadlike fibrils. 



Leaves. Simple, alternate, stiff, lanceolate or narrowly 

 oblong, entire, acute, close-pressed and densely imbricated on 

 the stem. Thickly covered with whitish down, and about one- 

 twelfth of an inch long. 



Flowers. May, June. Perfect, small, bright yellow, sessile- 

 or short-stalked ; crowded along the upper part of the branches. 



Calyx. Sepals five, obtuse, small, yellowish within, downy 

 without; two outer minute, bractlike ; the three others larger, 

 slightly twisted in the bud, persistent. 



Corolla. Petals five, yellow, much larger than the sepals, 

 convolute in bud, fugacious. 



Stamens. Nine to eighteen, hypogynous ; filaments slender, 

 anthers short, innate, two-celled. 



Pistil. Ovary one, superior, one-celled ; style long and 

 slender; stigma minute. 



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