36 Holm — Additions to the Flora of Washington. 



543a. Campanula aparinoides L. 



TeiTa Cotta swamp; quite abundant among Lilinm sttperhiun. The 

 autlior. 

 551. Gaultheiia procumbena L. 



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



564. Pyrola secunda L. 

 Garrett Park. P. H. Dorsett. 



565. Pyrola chlorantha Swtz. 

 Gai-rett Park. P. H. Dorsett. 



566. Pyrola elliptica Nutt. 

 Garrett Park. The author. 



567. Pyrola rotundifolia L. 

 Near Clievj^ Chase. G. H. Hicks. 



569. Monotropa Hypopitys L. 



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

 exactly to the Euro2)ean plant. But a very peculiar form has also been 

 collected, which differs from the description given of 31. 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 whetlier 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 androsaBmifolium L. 



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

 589. Asclepias rubra L. 



yi^hagnum swamp near Surattsville. J. Krause and the author. 



594. Asclepias obtusifolia Michx. 

 Not common. Brookland. The author. 



595. Asclepias variegata L. 



The Zoological I'ark ; 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. 



