AETERANTHERA ARACEZ 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 
placentz: 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. 
_OrpER C ARACEZA# Neck. Act. Acad. Theod. Palat. ii, 462: 
Glabrous perennial herbs with all radical or alternate leaves 
and perfect, monwcious or dicecious 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 and 
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, witb 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. Comuion in swamps, California to Alaska and Kamtschatka. 
Orper CI TYPHACEA J. St. Hil. Expos. Fam. i, 60. 
Aquatic perennial herbs with creeping rootstocks, cylindrical 
.solid stems, alternate linear entire sessile leaves and moncecious 
flowers in heads or on a spadix without perianth, the upper 
staminate, the lower pistillate. Stamens and ovaries intermixed 
with bristles or scales. Anthers linear, longitudinally dehis- 
cent.- Ovaries one- or two-celled, oue-ovuled, with slender style 
and one-sided stigmas. Fruit nut-like. Seeds pendulous, ana- 
