36 Holm Additions to the Flora of Washington. 



543a. Campanula aparinoides L. 



Terra Cotta swamp ; quite abundant among Lilium snperlmm. The 

 author. 

 551. Gaultheria procumbens L. 



Burnt Mills ; near Surattsville. M. B. Waite. 



564. Pyrola secunda L. 

 Garrett Park. P. H. Dorsett. 



565. Pyrola chlorantha Swtz. 

 Garrett Park. P. H. Dorsett. 



566. Pyrola elliptica Nutt. 

 Garrett Park. The author. 



567. Pyrola rotundifolia L. 

 Near Chevy Chase. G. H. Hicks. 



569. Monotropa Hypopitys L. 



The typical form is not rare in the District and seems to correspond 

 exactly to the European plant. But a very peculiar form has also been 

 collected, which differs from the description given of M. Hypopitys so 

 much that it seems to represent a distinct species. It is, for instance, of 

 a red, almost blood-red, color and densely pubescent all over. I have 

 secured some material of the European plant, preserved in alcohol, and 

 it is my intention to give a detailed account of the characters, morpho 

 logical and anatomical, so as to decide whether we shall consider this 

 plant to represent a species or only a variety. It has been collected in 

 Rock Creek by G. H. Hicks and near Arundel (Anne Arundel County, 

 Md.), by M. B. Waite. 



570. Dodecatheon Meadia L. 



Near Cabin John's Bridge. A. J. Pieters. 

 585a. Apocynum androssemifolium L. 



Very common in low grounds in South Brookland. The author. 

 589. Asclepias rubra L. 



Sphagnum swamp near Surattsville. J. Krause and the author. 



594. Asclepias obtusifolia Michx. 

 Not common. Brookland. The author. 



595. Asclepias variegata L. 



The Zoological Park ; Blagden's mill-race. G. H. Hicks. Brookland. 

 The author. 

 597. Asclepias verticillata L. 



In pine woods at Brookland. The author. 

 605. Gentiana ochroleuca Froel. 



Blagden's Run ; Glen Echo. G. H. Hicks. Brookland. The author. 

 608. Phlox paniculata L. 



Near Glen Echo. G. H. Hicks. 

 615a. Phacelia Covillei Wats. 



Island near the Seventh lock. G. H. Hicks. Very abundant on High 

 Island. M. B. Waite. 



