LOEANTHACEAE. 269 



long, keeled, often scarious-margined : corolla glabrous; tube slightly sur- 

 passing the calyx; lobes spreading: pyxis conic or oblong-conic, 4-4.5 mm. 

 long, circumscissile below the middle : seeds 4-9, 1.5-2 mm. long. Common, 

 in fields and waste places. Spr. and sum. 



5. P. major L. Perennial, bright-green, glabrous or sparingly pubescent. 

 Leaves basal, 5-35 cm. long; petioles flattened or channeled on the upper sur- 

 face, usually green at the base; blades ovate or oval, or rarely oblong, obtuse 

 or acutish, 5-7-nerved, entire or coarsely toothed, rounded or cordate at the 

 base: scapes erect, solitary or several together, surpassing the leaves, 8-40 cm. 

 tall, rarely with several leaves under the spike, sometimes branched : spikes 4-20 

 cm. long, dense : bracts ovate, barely equalling the calyx-lobes : flowers perfect : 

 calyx-lobes ovate to obovate, obtuse, not keeled, scarious-margined : corolla 

 inconspicuous; tube about as long as the calyx; lobes spreading or reflexed: 

 pyxis ovoid, about 3 mm. long, slightly surpassing the calyx-lobes, circum- 

 scissile at the middle : seeds 618, 0.7 mm. long. Common, in fields and 

 waste places. Nat. of Eu. Spr. and sum. COMMON-PLANTAIN. 



6. P. arenaria W. & K. Annual, hirsute, 1-5 dm. tall: leaves numerous, 

 mostly cauline, 2-8 cm. long; blades narrowly linear, often obscurely toothed: 

 spikes axillary, or umbellately clustered, oblong or cylindric, 1-2 cm. long, 

 dense: bracts with a broad body and a slender tip: calyx-lobes 3-4 mm. long, 

 the anterior ones broadly spatulate, the posterior ones lanceolate: corolla gla- 

 brous; lobes lanceolate, 2-2.5 mm. long: pyxis oblong. S. Eare, in fields. 

 Nat. of Eu. Sum. 



Order SANTALALES. 



Herbs, shrubs, or trees, mostly root- or tree-parasites. Leaves with 

 expanded blades or scale-like. Flowers inconspicuous, perfect or imper- 

 fect. Calyx present, but often a mere border. Corolla present or wanting. 

 Androecium of as many stamens as there are sepals or petals, or twice as 

 many. Gynoecium of several united carpels: ovary more or less inferior. 

 Fruit a drupe, a nut, or a berry. 



Leaves opposite : fruit a berry : tree-parasite. Fam. 1. LORANTHACEAE. 



Leaves alternate : fruit a drupe or a nut : root-parasite. Fam. 2. SANTALACEAE. 



FAMILY 1. LORANTHACEAE. MISTLETOE FAMILY. 



Green parasitic herbs or shrubs, growing mostly on woody plants. 

 Leaves typically opposite, sometimes scale-like. Flowers monoecious or 

 dioecious, regular. Calyx of minute sepals, or obsolete. Corolla of 2-6 

 more or less united petals. Androecium of 2-6 stamens. Gynoecium com- 

 pound, often 2-earpellary, but the inferior ovary 1-celled. Fruit baccate. 



1. PHORADENDRON Nutt. Shrubs. Leaves with flat leathery blades, 

 or scale-like. Flowers mostly dioecious, spicate, the staminate with a stamen 

 at the base of each broad petal, the pistillate with the ovary adnate to the 

 hypanthium. Berry juicy. 



1. P. flavescens (Pursh) Nutt. Branches pubescent, terete: leaf -blades mainly 

 o val- spatulate : hypanthium globular during anthesis: berries white: seeds 

 ovoid, fully 2 mm. in diameter. S. Eare, on black-gum trees near Martic 

 Forge. Sum. MISTLETOE. AMERICAN-MISTLETOE. 



FAMILY 2. SANTALACEAE. SANDAL-WOOD FAMILY. 



Herbs, shrubs, or trees, parasitic on the roots of other plants. Leaves 

 opposite or alternate: blades entire. Flowers perfect, polygamous, or 



