POLEMONIACEAE. 



305 



or 3 pairs of stalked oval leaflets and a terminal forked tendril, the solitary, 

 long-peduncled flowers about IV broad, the corolla violet or purple. 



Phlox Dnimmondii Hook., Annual Garden Phlox, Texan, a glandular- 

 i^ubescent annual, about 1° high, with sessile, ovate to lanceolate, entire 

 alternate leaves l'-2' long, the flowers in terminal cymes, the calyx with 5 

 narrow lobes, the salverf orm corolla white, red or purple, its slender tube 

 nearly 1' long, its 5 obovate lobes spreading, is grown in flower-gardens. 



Phlox paniculata L., Perennial Garden Phlox, North American, a 

 nearly glabrous erect perennial with oblong-lanceolate, petioled leaves 2'-4' 

 long, the white to purple flowers panicled, was grown in the Public Garden, 

 St. George's, in 1913. 



Family 4. HYDROPHYLLACEAE Lindl. 



Water-leaf Family. 



Herbs, mostly hirsute, pubescent or scabrous, with alternate or basal, 

 rarely opposite leaves, and perfect regular 5-parted flowers, in scorpioid 

 cymes, spikes or racemes, or rarely solitary. Calyx inferior, deeply cleft 

 or divided. Corolla gamopetalous. Stamens 5, inserted on the corolla, 

 and alternate with its lobes; filaments filiform; anthers mostly versatile, 

 2-celled, the sacs longitudinally dehiscent. Disk annular, or none. Ovary 

 superior, 2-celled, or 1-celled w^ith 2 placentae ; styles 2, separate, or partly 

 united ; stigmas small, terminal ; ovules anatropous or ampliitropous. Cap- 

 sule 1-2-celled, mostly loeulicidally 2-valved. Seeds usually pitted, rugose 

 or reticulated ; endosperm fleshy or cartilaginous ; embryo small ; cotyledons 

 half-terete or plano-convex. About 17 genera and 175 species, mostly 

 natives of western North America. 



1. MARIIiAUNiDIUM Kuntze. 

 Branching pubescent herbs, with alternate entire leaves, the flowers soli- 

 tary in the axils. Calyx 5-cleft. Corolla funnelform or salverform, 5-lobed, 

 the lobes imbricated in the bud. Stamens mostly included, borne on the 

 corolla-tube. Ovary 1-celled, or incompletely 

 2-celled; ovules numerous. Fruit a 2-valved 

 capsule. [In honor of Dr. Anton Kerner 

 Eitter von Marilaun.] About 20 species, 

 natives of America, the following typical. 



1. Marilaunidium jamaicense (L.) 

 Kuntze. Jamaica Weed. (Fig. 325.) An- 

 nual, much branched, the branches prostrate, 

 3'-15'' long. Leaves thin, spatulate or obo- 

 vate, J'-2' long, obtuse or apiculate, nar- 

 rowed to a sessile, somewhat decurrent base ; 

 peduncles 3" long or less; calyx-segments 

 hirsute, linear, 3"-4" long; corolla white or 

 purplish, about as long as the calyx, its 

 lobes broad ; capsule oblong, a little longer 

 than the calyx. [Nama jamaicensis L.] 



Waste and cultivated grounds, frequent. 

 Native. Souttiern United States, West Indies 

 and tropical continental America. Flowers in 

 spring. Its seeds were probably broughit to 

 Bermuda by a bird. 

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