280 Rydberg : Some Generic Segregations 



a. With corolla : 



1. B. alpina (A. Gray); Synthyris alpina A. Gray, Am. Jour, 



Sci. II. 34 : 251. 1862. 



2. B. BuUii (Eaton) ; Gymnandra Biillii Eat.; Eat. & Wr. N. Am. 



Bot. 259. 1840; Synthyris Hoiightoniana ^Qnih..; DC. Prodr. 

 10 : 454. 1846. 



3. B. plantaginea (Benth.) ; 5. plantaginea Benth.; DC. Prodr. 

 10 : 455. 1846. 



4. B. reflexa (Eastw.) ; 5. reflexa Eastw. Proc. Cal. Acad. III. 



I : 124. 1898. 



5. B. Ritteriana (Eastw.) ; 5. Ritteriana Eastw. 1. c. 123. 



b. Without corolla : 



6. B. rubra (Dough); Gyjunandra rubra Dough; Hook, Fh Bor, 



Am. 2 : 103. 1838; Synthyris rjibra Benth.; DC. Prodr. 10 : 

 455, 1846. 



7. B. gymnocarpa (A. Nels.); Widfenia gymnocarpa K. Nelson, 



Bull. Torrey Club, 25: 282. 1898. 



8. B. Wyomingensis (A, Nels.) ; W. Wyomingensis A, Nelson, 



h c, 281. 

 New York Botanical Garden, 



Explanation of Plates 



Plate 13 



Fig. I. Zygadentis glaberrimus Islxohx. a, section of flower ; b, sepal ; c, petal ; 

 d, stamens ; e, pistils. 



Fig. 2. Toxicoscordion intermedium Rydb. a, b, etc., as above. 



Fig, 3. Antidea elegans (Pursh) Rydb. a, b, etc., as above. 



Fig, 4. Antidea Sibirica (L. ) Kunth. a, b, etc., as above. 



Fig. 5. Rubtis nigrobaccus Bailey, a, section of receptacle ; b, a young drupelet ; 

 C, stone. 



Fig. 6. Rubacer odoratum (L. ) Rydb. a, b, c, as in the preceding. 



Fig. 7. Oreobatm delidosus (James) Rydb. a, b, C, as in the preceding. 



Plate 14 



Fig. I, Touterea decapetala (Pursh) Rydb. a, section of the flower showing two 

 of the petals and two of the similar staminodia ; b, one of the petals ; c, stamens ; d, 

 style ; e, partial section of the capsule showing one placenta in front view and half of 

 another in lateral view ; f , winged seed. 



Fig. 2. Bicuspidaria tricuspis (A. Gray) Rydb. a, section of flower ; b, fruit ; c, 

 pistil ; d, stamen with the two cusps ; e, section of a part of the capsule, showing in 



