FLOWERING PLANTS AND FERNS 01 ARIZONA 323 



1. Sepals 5 to 8, elliptic to ovate; stems from an elongate, more or less woody 

 caudex; herbage copiously pubescent (2). 



2. Stems commonly not more than 30 cm. long; pubescence soft, spreading, 

 the hairs long and very fine; leaves pedately several-parted, the divisions 

 all narrow, lanceolate or oblanceolate, entire or few-cleft, the uppermost 

 leaves subsessile or very short-petioled; sepals purplish outside, yellowish 

 or purplish within; head of carpels globose or short-ovoid, not more than 

 15 mm. long; styles usually decidous 2. A. globosa. 



2. Stems commonly more than 30 cm. long; pubescence subappressed; leaves 

 pedately 3-parted, the main divisions broadly cuneate-obovate, several- 

 cleft and several-toothed, the uppermost leaves with petioles nearly to 

 quite as long as the blades; sepals whitish; head of carpels cylindric. 20 

 mm. long or longer ; styles (at leastjthe bases) persistent _3. A. cylixdrica. 



1. Anemone tuberosa Rydb., Torrey Bot, Club Bui. 29: 151. 1902. 

 Coconino and Mohave Counties to Santa Cruz and Pima Counties, 



2.500 to 4,500 feet, among rocks on mesas and foothills, February to 

 April. Texas to Utah, Arizona, and California. 



A pretty spring wild flower. Perhaps not specifically distinct from 

 A. sphtnophjlla Poepp., of southern South America. 



2. Anemone globosa Xutt. ex Pritz., Linnaea 15: 673. 1841. 



San Francisco Peaks (Coconino County), 10,500 to 12,000 feet, 

 July. Western Canada to New Mexico, northern Arizona, and Cali- 

 fornia. 



3. Anemone cylindrica A. Gray, Ann. Lye. N. Y. 3: 221. 1836. 

 Apache and Coconino Counties, 6,500 to 7,500 feet, rich soil along 



streams, July. New Brunswick to British Columbia, south to New 

 Jersey, New Mexico, and Arizona. 



8. CLEMATIS 



Plants perennial; stems \voody below, weak, usually climbing by 

 means of tendrillike petioles; leaves opposite, the pairs scattered along 

 the stem, pinnate or bipinnate; flowers perfect or unisexual, regular; 

 perianth in one series, the segments thin and petallike or thick and 

 leathery, the petals none or rudimentan^; stamens and pistils num- 

 erous; fruit of achenes, these in globose heads, with long, persistent, 

 plumose styles. 



Several species are grown extensively as ornamentals and some of 

 the exotic species are among the handsomest of cultivated climbing 

 plants. The species of the section Viorna are known, collectively, as 

 leatherflower. 



Key to the species 



1. Flowers in panicles of cymes, numerous, dioecious or polygamo-dioecious; 



sepals cream-colored or ochroleucous, spreading (2). 



2. Leaflets divergently cleft or parted, not more than 5 cm. long; tails of the 



mature carpels commonly more than 5 (up to 10) cm. long; herbage 



grayish-pubescent, usually copiously so 1. C. drum.moxdii. 



2. Leaflets with ascending lobes and teeth, 3 to 7 cm. long; tails of the carpels 



not more (usually less) than 5 cm. long; herbage loosely pubescent to 



nearly glabrous, green 2. C. ligusticifolia. 



1. Flowers solitary, very few, perfect (3). 



3. Sepals thin, spreading, violet or purple, glabrous or inconspicuously pubes- 



cent; stamens spreading; leaves ternate or biternate; leaflets few-toothed 

 or cleft: Section Atragene 3. C. pseudoalimxa. 



