280 RYDBERG: SOME GENERIC SEGREGATIONS 
a. With corolla: 
. B. alpina (A. Gray); Syuthyris alpina A. Gray, Am. Jour. 
etic G4; 251... 1802. 
2. B. Bullii (Eaton) ; Gymnandra Bulli Eat.; Eat. & Wr. N. Am. 
Bot. 259. 1840; Syuthyris Houghtoniana Benth.; DC. Prodr. 
10: 454. 1846. 
3. B. plantaginea (Benth.); S. plantaginea Benth.; DC. Prodr. 
IO: 455. 1846. 
onl 
4. B. reflexa (Eastw.); S. reflexa Eastw. Proc. Cal. Acad. III. 
i; -V24. 1398. 
5. B. Ritteriana (Eastw.) ; S. Aitteriana Eastw. |. c. 123. 
6. Without corolla : 
. B. rubra (Dougl.); Gymnandra rubra Dougl.; Hook. FI. Bor. 
Am. 2: 103. 1838; Synthyris rubra Benth.; DC. Prodr. 10: 
455. 1846. | 
7. B. gymnocarpa (A. Nels.); Wadlfenia gymnocarpa A, Nelson, 
Bull. Torrey Club, 25: 282. 1808. 
8. B. Wyomingensis (A. Nels.); W. Wyomingensis A. Nelson, 
ie: “28, 
New York BoTANICAL GARDEN. 
On 
Explanation of Plates 
PLATE 13 
Fic. 1. Zygadenus glaberrimus Michx. a, section of flower ; b, sepal ; c, petal ; 
d, stamens; e, pistils, 
Fic. 2. Toxicoscordion intermedium Rydb. a, b, etc., as above. 
Fic, 3. Anticlea elegans (Pursh) Rydb, a, b, etc., as above. 
Fic, 4. Anticlea Sibirica (L.) Kunth. a, b, etc., as above, 
Fic. 5. Rubus nigrobaccus Bailey. a, section of receptacle ; b, a young drupelet ; 
c, stone. 
Fic. 6. Rubacer odoratum (L.) Rydb. a, b, c, as in the preceding. 
Fic. 7. Oreobatus deliciosus (James) Rydb. a, b, ¢, as in the preceding. 
PLATE 14 
Fic. 1. 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, 
Fic, 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 
