258 ^- i edde und K. Schuster: Index novarum Siphouogamarum. [258 



AlUonia ciliata Standlej 1. c. p. 345 (= Oxybaphus aggregatus Torr., not Vahl.). 



— Western. Texas (Wright n. 1717). 



A^ pumüa Standley I. c. p. 845. — Arizona (Toumey n. 484). 



A. Brandegei Standlej 1. c. p. 346. — California. 



A. fachyphylla Standley 1. c. p. 346. — Arizona (Toumey n. 485). 



A. polytricha Standley 1. c. p. 346. — Colorado (Brandege n. 437). 



A. rotata Standley 1. c. p. 347. — Mexiko (Gregg n. 5H). 



.4. coahuilensis Standley 1. c. p. 347. — ibid. fPalmer ii. 158). 



A. Greggii Standley l. c. p. 348. — ibid. «Gregg n. 394 b. 348. 394). 



A. gigantea Standley 1. c, p. 348. — Texas. 



A. latifolia (A. Gray) Standley 1. c. p. 350 (= Oxybaphus nydagineus var. lati- 



fdius A. Gray). 

 A. ohiongifolia (A. Gray) Small (= Oxybaphus nydagineus oblongifolius A. Gray 



= Mirahilis oblongifolia Heimerl). — Texas. 

 A. Tpratensis Standley 1. c. p. 351. — Arizona (Blumer n. 1384). 

 A. melanotricha Standley 1. c. p. 351 (= Oxybaphus nydagineus var. Cervantesii 



A. Gray, not 0. Cervantesii Lag.). — Arizona (Blumer n. 1385). 

 A. hirsuta Pursh subsp. coloradensis Standley 1. c. p.353. — Colorado (Fritchey n.28). 

 A. chersophila Standley 1. c. p. 354. — Missouri (Mackenzie n. 421). 

 A. trichoäonta Standley 1. c. p. 354. — Mexiko (Purpus). 

 A. Carletonii Standley 1. c. p. 355. — Kansas (Carleton n. 256); Oklahoma 



(Carleton n. 361). 

 A. exaltata Standley 1. c. p. 355. — Oklahoma (Carleton n. 223, Mark White 



n. 163). 

 A. lanceolata var. uniflora (Heimerl) Standley 1. c. p. 355 (= Mirabilis albida 



var. uniflora Heimerl). 

 A. pseudaggregata (Heimerl) Standley 1. c. p. 356 (= Mirabilis pseudaggregata 



Heimerl). — Mexiko (Pringle n. 793); Texas (Nealley n. 528). 

 A. pseudaggregata var. subhirsuta (Heimerl) Standley 1. c. p. 356 (= Mirabilis 



pseudaggregata var. subhirsuta Heimerl). — ibid. (Palmer n. 267). 

 Allioniella oxybaphoides var. glabrata (Heimerl) Standley 1. c. p. 357 (= Mirabilis 



oxybaphoides var. glabrata Heimerl). — New Mexico (Earle n. 399, Wootoa 



n. 2823); Colorado (Crandall n. 2119); Texas, Arizona (Hough n. 91), 

 Anulocaalis Standley gen. nov. in Contrib. ü. S. Nat. Herb. Washington XH 



(1909). p. 374. 



There is no good reason why plants which differ so markedly as 



these from typical Boerhaavias should be included in the genus Boer- 



haavia- Such treatment is certainly not conducive to generic unity. 



The plants included in the new genus may be separated at once 



by their distinct general appearance, due especially to their large, thick 



leaves, the shape of the perianth which has a distinct tube instead of 



being campanulate, and the 10-ribbed fruit of different shape. 

 A. eriosolenus (A. Gray) Standley 1. c. p. 375 (= Boerhaavia eriosolena A. Gray). 



— Mexiko, Texas. 



A. annulatus (Coville) Standley 1. c. p. 375 (= Boerhaavia anmäata Coville). — 



California. 

 A. leiosolenus (Torr.) Standley 1. c. p. 375 (= Boerhaavia leiosolena Torr.). — 



Texas, Nevada. 

 Boerhaavia megaptera Standley in Contrib. U. S. Nat. Herbarium Washington 



XII (1909). p. 379. — Arizona (Thornber n. 162). 



