WOOTON AND STAISTDLEY FLOE A OF NEW MEXICO. 379 



KEY TO THE SPECIES. 



Leaflets linear or linear-oblong, twice as long as the petioles or more. . 1. C longifolia. 

 Leaflets oblong-ovate, about equaling the petioles 2. C. pulchella. 



1. Cologania longifolia A. Gray, PL Wright. 2: 35. 1853. 



Type locality: Hills near the Copper Mines, New Mexico. Type collected by 

 Wright (no. 961). 



Range: New Mexico, Arizona, and adjacent Mexico. 



New Mexico: Hanover Mountain; Mogollon Mountains. Dry hills, in the Upper 

 Sonoran Zone. 



2. Cologania pulchella H. B. K. Nov. Gen. & Sp. 6: 413. 1823. 



Type locality: "Crescitin Regno Novae Hispaniae, prope Pazcuaro, alt. 1130 hex." 

 Range: Western Texas to Arizona, south into Mexico. 



New Mexico: Mangas Springs; Organ Mouiitains; Cliff; Hondo Hill; Cactus Flat; 

 Queen; Organ Mountains. Dry hillsides. 



Order 28. GERANIALES. 



KEY TO THE FAMILIES. 



Plants with secreting glands in the leaves or bark. 

 Filaments united into a cup or tube, wholly 



or in part ...79. MELIACEAE (p. 390). 



Filaments distinct nearly or quite to the 

 base. 



Leaf blades punctate with oil glands 77. EUTACEAE (p. 388). 



Leaves not punctate 78. SIMARUBACEAE (p. 390). 



Plants destitute of secreting glands or cells. 



Sepals bearing 1 or 2 dorsal glands 76. MALPIGHIACEAE (p. 388). 



Sepals without dorsal glands. 



Styles united around a central column, 

 breaking away from this at 



maturity 71. GERANIACEAE (p. 379). 



Styles distinct or permanently united. 

 Styles distinct or partially united, 

 the tips and the stigmas 

 distinct. 



Leaves simple; stamens 5 72. LINACEAE (p. 381). 



Leaves compound; stamens 10 



to 15 73. OXALIDACEAE (p. 383). 



Styles and stigmas permanently 

 united. 

 Filaments normally appendag- 

 ed; seeds straight or 



nearly so 74. ZYGOPHYLLACEAE (p. 385). 



Filaments not appendaged; 



seeds strongly bent 75. KOEBERLINIACEAE (p. 387). 



71. GERANIACEAE. Cranesbill Family. 



Annual or perennial herbs, often glandular-pubescent, with lobed or dissected 

 leaves; flowers regular, complete, symmetrically pentarnerous, in few-flowered axillary 

 pedunculate clusters; sepals persistent; petals mostly conspicuous; stamens of the 

 same number as or 2 or 3 times the number of the petals; pistil of 5 united carpels, 

 the united styles forming a persistent column; fruit a capsule, each carpel breaking 

 away from the column. 



