FLOWERING PLANTS AND FERNS OF ARIZONA 825 



17. BESSEYA" 



Plants herbaceous, perennial, subscapose; stem leaves bractlike, 

 much smaller than the large basal leaves; inflorescence terminal, 

 very dense, spikelike, conspicuously bracted; corolla whitish or pur- 

 plish, the upper lip entire, the lower lip 3-lobed. 



Key to the species 



1. Corolla 5 mm. long or longer, conspicuously exserted; capsules emarginate at 

 apex, 5 to 6 mm. long; leaf blades commonly subcuneate at base, up to 

 20 cm. long 1. B. plaxtagixea. 



1. Corolla not more (usually less) than 5 mm. long, moderately exserted; capsules 

 rounded to acutish at apex, not more (usually less) than 5 mm. long; leaf 

 blades rounded or subcordate at base, not more than 8 cm. long. 



2. B. ARIZOXICA. 



1. Besseva plantaginea (Benth.) Rydb., Torrey Bot. Club Bui. 30: 



280. 1903. 



Synthyris plantaginea Benth. in DC, Prodr. 10: 455. 1846. 

 Besseya gooddingii Pennell, Acad. Nat. Sci. Phila. Proc. 85: 

 101. 1933. 



White Mountains (Apache and Greenlee Counties), about 9.500 

 feet, moist meadows. July and August, type of B. gooddingii from 

 Sitgreaves Camp. White River (Goodding 1119). Wyoming to New 

 Mexico and eastern Arizona. 



The Arizona form (B. gooddingii) has exceptionally elongate, gla- 

 brate leaves. 



2. Besseva arizonica Pennell, Acad. Nat. Sci. Phila. Proc. 85: 103. 



1933. 

 White Mountains (Apache County), San Francisco Peaks and vi- 

 cinity (Coconino County), 7.200 to 8,500 feet, moist meadows and 

 coniferous forests. May to August, type from the San Francisco 

 Peaks (Leiberg 5537). Known only from northern Arizona. 



18. GERARDIA 



Plant perennial with a large woody caudex, probably a root para- 

 site; herbage retrorsely hispidulous; leaves opposite or nearly so, or 

 in whorls of 3, narrowly linear, entire, often revolute; flowers long- 

 pedicelled, in loose leafy racemes; corolla large, brownish yellow or 

 orange yellow, with a short tube scarcely surpassing the calyx, and a 

 large ventricose throat. 



1. Gerardia wrightii A. Gray in Torr., U. S. and Mex. Bound. Bot. 

 118. 1859. 



Brachy stigma wrightii Pennell, Acad. Nat. Sci. Phila. Proc. 

 80: 433. 1928. 



Cochise, Santa Cruz, and Pima Counties, 5.000 to 7,500 feet, dry 

 slopes and mesas, often among live oaks, August and September, type 

 from between Babocomari, Cochise County, Arizona, and Santa 

 Cruz, Sonora (Wright). 



Southwestern New Mexico, southern Arizona, and northern Mexico. 



44 Refei3ix-e: Pennell. Francis W. a revision o* synthyris and besseya. Acad. Nat. Sci. Phila 

 Proc. 85: 77-106. 1933. 



