nB nvv 



HKTERANTHERA ARACEiE 667 



LYSICHITON }** * 



by a spathe. Lobes of the perianth nearly or quite equal, linear. 

 Stamens 3, inserted on the throat of the perianth. Ovary fusi- 

 form, completely or incompletely 3-celled by the intrusion of the 

 placentae: ovules numerous: stigma 3-lobed. Fruit an ovoid 

 many-seeded capsule enclosed in the marcescent tube of the 

 perianth. Seeds ovoid, striate. 



H. dubia Mac M. Met. Miun. 138. Schollera graminifolia Willd. 

 Aquatic perennial: stem slender, forked, often rooting at the nodes. 1-4 

 feet long; leaves linear, flat, acute, their sheaths thin, furnished at the top 

 with small acute stipule-like appendages : spathes 1- or 2-flowered : flowers 

 light yellow : perianth-segments narrow, 3-4 lines long, the tube 1-3 inches 

 long; capsule 1-celled, torulose, 3-4 lines long. In ponds, Oregon to Cali- 

 fornia and the Atlantic States. 



Order C ARACE.E Neck. Act. Acad. Theod. Palat. ii> 462. 



Glabrous perennial herbs with all radical or alternate leaves 

 and perfect, monoecious or dioecious flowers sessile and crowded 

 upon a spadix which is surrounded by a simple spathe. Peri- 

 anth none, or of 4 scale-like segments. Stamens 4 in our spe- 

 cies: filaments very short: anthers 2-celled, opening by pores 

 or slits. Ovary one- to several-celled, with one to several ovules 

 in each cell. Style short or wanting: with terminal mostly 

 minute and sessile stigma. Seeds various, mostly minute ancl 

 albuminous. 



1 LYSICHITON Schott Prodr. Aroid. 421. 



Acaulescent swamp herbs with large flat leaves from a thick 

 horizontal rootstock and numerous small flowers on a spdix sur- 

 rounded by a spathe with a sheathing base that at first envelopes 

 it but at length becoming long exserted upon a stout peduncle. 

 Flowers perfect, crowded and covering the spadix, with 4-lobed 

 perianth and 4 stamens opposite to the lobes. Filaments short 

 and flat : anthers 2-celled, opening upward. Ovary conical, 2- 

 celled, with 2 horizontal orthotropous ovuls. Stigma depressed. 

 Fruit fleshy, somewhat immersed in the rachis and coalescent. 



L. Kamtschatcensis Schott 1. c. Leaves 1-4 feet long, 3-18 inches 

 wide, oblong to oblong -lanceolate, acute, narrowed below to a short mar- 

 gined petiole or sessile: spathe yellow, with a broad acute blade 2-6 inches 

 long, narrowed below to a sheathing petiole 3-10 inches long : peduncle 

 very stout, 8-12 inches long ; spadix broader, 2-4 inches long, densely 

 flowered. Common in swamps, California to Alaska and Kamtschatka. 



Order CI TYPHACEiE J. St. Hil. Expos. Fam. i, 60. 



Aquatic perennial herbs with creeping rootstocks, cylindrical 

 solid stems, alternate linear entire sessile leaves and monoecious 

 flowers in heads or on a spadix without perianth, the upper 

 staminate, the-rower pistillate. Stamens and ovaries intermixed 

 with bristles or scales. Anthers linear, longitudinally dehis- 

 i cent. Ovaries one- or two-celled, one-ovuled, with slender style 

 and one-sided stigmas. Fruit nut-like. Seeds pendulous , ana- 





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