364 , AEISTOJ^OCHIACE^. 



pubescent below and above on the veins, 3 to 6 in. broad, on petioles 

 3J to 7 in. long; peduncles 6 to 12 lines long; calyx-lobes triangular 

 or oblong, attenuate into a tail vfhich is 1 to 2J in. long; filament 

 stout, the free apex of the connective much shorter than the anther; 

 ovary 4 lines broad; styles united, equaling the stamens; seeds ovate, 

 IJ lines long. 



Not infrequent in deep shade of woods, following very closely the 

 distribution.tof the Coast Kedwood: Santa Cruz Mountains; Oakland 

 Hills, P. P. McLean, 1874, Ealph E. Gibbs, 1898; Marin Co.; Napa 

 Valley and northward. Not in the inner Coast Ranges. Feb.- 

 June. There are two other species in California: A. Haktweqi 

 Wats., common in the Sierra Nevada from Mt. Shasta to Tosemite, 

 has the leaves strikingly mottled and glabrous above; calyx-lobes 

 caudate-attenuate, 1 to IJ in. long; connective as long or twice as 

 long as the anther. A. Lkmmoni Gray is very similar to A. 

 caudatum, but the leaves are nearly glabrous above and the calyx- 

 lobes are obtuse, or only a:cute and J in. long or less. — Sierra Nevada, 

 Plumas Co., Lemmon, to Fresno Co., ace. to Greene. 



2. ARISTOLOCHIA L. Pipe Vine. 



Twining shrubs with sparingly branched stems and axillary pendu- 

 lous flowers. Calyx tubular, strongly curved and pipe-shaped, decid- 

 uous. Anthers 6, rarely 7 or 8, sessile, and adnate to the short style. 

 Stigma 3 to 6-lobed or -angled. Capsule 6-angled and 6-valved, 

 septicidally dehiscent. Seeds horizontal, in one row in each cell, 

 numerous. (Greek aristos, best, locheia, parturition, from its supposed 

 efficacy in child-birth.) 



1. A. Callfornica Torr. Dutchman's Pipe. Deciduous woody 

 climber, twining 5 to 12 ft. high on shrubs, the herbage more or less 

 pubescent, sometimes silky; leaves conduplicate in the bud, ovate, 

 cordate, IJ to 8 or even 5j in. long, on petioles 1 or 2 in. long or 

 less; pedicels f in. long, with a bract at the middle; calyx greenish, 

 veined with purple, the tube closely doubled upon itself, forming a 

 very sharp angle on the upper side and conspicuously inflated on the 

 lower side, only slightly contracted at the throat, 4 to 6 lines broad, 

 IJ to IJ in. from base to apex on the lower side; inside of tube near 

 the base with a broad dull purple band; limb 2-lipped, the upper 

 lip consisting of 2 broad obtuse lobes, the lower entire, all lined with 

 a, disk-like thickening which on the upper side is continued down- 

 ward and at the angle forms a projection partially closing the tube; 

 anthers disposed in pairs on the lower part of the stigma-lobes; ovary 

 clavate; stigma with 8 broad obtuse lobes; capsule broadly oblong- 

 obovate, abruptly contracted to a slender base, 6-winged, 2 to 2J 

 in. long; seeds cuneate-obovate, 3 lines long, deeply concave on the 

 upper side, the edges incurved, with a very prominent spongy raphe 

 in the concavity. 



Coast Ranges: Monterey north wai-d to Marin Co.; Glen Ellen, 

 M. Louise Douglas; Wooden Valley grade from Napa Valley; 

 Araquipa Hills (Solano Co.); and Mendocino Co. Also in the 



