LORANTHACEAE. 307 



Co.; Napa Valley; Cahto (Mendocino Co.). Following rather closely the dis- 

 tribution of the Redwood. Not in inner Coast Ranges. A. le.mmoxii Wats, is 

 very similar; calyx lobes only 4 to 6 lines long. — Plumas Co., etc. A. hart- 

 WEGii Wats.; leaves strikingly mottled, glabrous above; calyx-lobes caudate- 

 attenuate. 1 to iy 2 in. long; connective as long or twice as long as anther; 

 styles nearly distinct. — Sierra Nevada, 4,000 to 7,000 ft., common; west to 

 New River, Trinity Co. 



2. ARISTOLOCHIA L. Pipe Vine. 



Twining shrubs with sparingly branched stems and axillary pendulous flowers. 

 Calyx tubular, strongly curved and pipe-shaped. Anthers 6, rarely 7 or 8, sessile, 

 disposed in pairs and adnate to the short simple style. Stigma 3 to 6-lobed or 

 -angled. Capsule 6-angled and 6-valved, septicidally dehiscent. Seeds hori- 

 zontal, in one row in each cell, numerous. (Greek aristos, best, locheia, parturi- 

 tion, from its supposed efficacy in child-birth.) 



1. A. californica Torr. Dutchman's Pipe. Deciduous woody climber, 

 twining 5 to 12 ft. high on shrubs, the herbage more or less pubescent, some- 

 t ; mes silky; leaves ovate, cordate, l 1 ^. to 3 (or 5y 2 ) in - long, on petioles 1 or 2 

 in. long or less; pedicels % in. long, with a bract at the middle; calyx green- 

 ish, veined with purple, 1% to 1% in. long; inside of tube near the base with 

 a broad dull purple band; limb 2-lipped, the upper of 2 broad obtuse lobes, the 

 lower entire, all lined with a disk-like thickening which on the upper side is 

 continued downward and at the angle forms a projection partially closing the 

 tube ; ovary clavate ; stigma with 3 broad obtuse lobes ; capsule broadly oblong- 

 obovate, abruptly contracted to a slender base, 6-winged, 2 to 2% 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 Range hills from Monterey Co. (ace. Bot. Cal.) and Contra Costa Co. 

 to Mt. Shasta, thence southward in the Sierra Nevada foothills to Butte Co. 

 Most frequent in the North Coast Ranges from the Vaca Mts. to Sonoma Co. 

 Mar. -Apr. 



LORANTHACEAE. Mistletoe Family. 



Evergreen shrubs, parasitic on trees. Branches dichotomous. Leaves oppo- 

 site, simple and entire, or often reduced to connate scales. Flowers dioecious 

 (in ours), greenish and inconspicuous, regular, apetalous. Sepals 2 to 5. Sta- 

 mens as many as the sepals and inserted upon them ; anthers 1 or 2-celled. 

 Ovary inferior, 1-celled. Fruit a berry with glutinous endocarp. Embryo 

 straight, in copious endosperm. 



Berry sessile; flowers globose; leaves (in ours) foliaceous 1. Phoradexdrox. 



Berry on a recurved pedicel; flowers mostly compressed; leaves scale-like and connate... 



2. Arceuthobium. 



1. PHORADENDRON Nutt. Mistletoe. 

 Parasitic on mostly deciduous trees, the stems much branched and swollen at 

 the nodes. Leaves foliaceous and coriaceous, or scale-like. Flowers sunk in the 

 joints of the jointed spikes, usually several to each scale. Staminate calyx com- 

 monly 3-lobed. the anthers 2-celled, sessile on the base of the lobes. Pistillate 

 calyx adherent to the ovary, the 3 teeth persistent on the globose semitrans- 

 parent mucilaginous sessile berry. (Greek phor, a thief, and dendron, a tree.) 



Leaves elliptic to oblong, 3 or 5-nerved. 



Herbage yellowish 1. P. flavescens. 



Herbage greenish 2. P. zillosum. 



Leaves narrowly oblong or spatulate, nerveless., 3. P. bolleanum. 



