omnibus axillis. Antheræ exappendiculatæ. Calyces inferiøres non 
vel angustissime alati, superiores alati, in his perigonii fructiferi 
foliorum 3 (vel 4) alata, 2 (1) non vel minime alata. omnia apice 
reflexa semen horizontale non tegentia. Alæ diametrum 5—7 mm. 
Stigmata 2 filiformia. — Tab. nostr. III. (magnit. y). 
This species is nearly allied to S. sogdiana Bunge, wliicli is a 
very strict plant, while S. aperta is less ose more diffuse. The 
latter has shorter leaves but longer spines upon the leaves (by 
S. sogdiana „breviter cuspidata sed vix pungentia“), and the sepals 
form no cover over the fruit, which lies as in the bottom of a bowl 
(aperta). By S. sogdiana the superior parts of the sepals form 
„discum convexum induratum“. This is te be seen upon the 
foregoing species, but not at all upon this. — To this species be- 
longs No. 349 of Mr. Litwinows Plants from Turcomannia, collected 
by him by Repetek 24. Y. 1898 (with the Name S. sogdiana Bge.). 
N. 1868. Buchara, in sandy desert by Kis-Kala by the river Amu Daria 
between Ishak rabat and Tshardshui. June 23. 1999. 
45. S. crassa M. Bieb.; Ldb. fl. ros. III, p. 804; Trautv. 
Enum. pi. songor. p. 66: Bunge Jteliq. Lehm. p. 472; Bunge Enum. 
p. 433; Bois. fl. or. IV, p. 956; Lipski 1. c. p. 18. 
N. 2021. Chiwa, between Tamarix-shrubs near Chodsheli. July 26. 1899. 
Area: Southern Russia, Southern Sibiria, middle- and central Asia. 
46. S. sclerantha C. A. M. in Eichw. PI. casp. cauc. p. 25, 
T. 27 ; Ldb. fl. ros. III, p. 807; Trautv. Enum. pi. songor. p. 68; 
Bunge reliq. Lehm. p. 471; Bunge Enum. p. 435; O. Fedtschenko 
1. c. p. 131; S. carinata C. A.M. 1. c., Ldb. 1. c., Bunge Reliq. Lehm. 
p. 471; Bois fl. or. IV, p. 955; Lipski 1. c. p. 17. 
N. 1700. Buchara, on uncultivated land. May 23. 1899. 
N. 1793. Buchara, in sandy desert by Chodsha Dawlet. June 10. 1899. 
Area: Middle- and Central-Asia. 
47. S. spissa M. Bieb. Mern. Soc. Imp. Nat. Moscou I. 1806; 
Ldb. fl. ros. III, p. 808; Trautv. Enum. pi. songor. p. 68; Bunge 
Reliq. Lehm. p. 472; Bunge Enum. p. 435; Bois. fl. or. IV, 
p. 459. Halogeton Olivieri Moq.; Jaub. Sp. 111. pi. orient, t. 134. 
