47l> in liMANM.Vl'K.K. (lUU.MANMA KAMII.V.) 



I. V. spiralis, 1- — Slnwlluwini; streams ami ]miihIs. July - Sept. 

 21. — riant iTiMpiii^, pn/lifurous. jA-aves olitiisc, 5 - '.(-iicivfil, sharjily scnu- 

 Intc, 1°-.'J° loiij^, ()"-12" wide. Scape of the sterile flowers r-4'luug; of 

 the fertile, sj)iral, 2'^-5^ l«.ii^'. rniil I' -3' lim^', often curved. 



8. HALOPHILA, riiouars. 



I'lowers didH-ious, axillary, solitary. I'eriantli '2-leaved. Stamens .3, mon- 

 adeli)lioii.s ; anthers 1-celled. Ovary 1-celled, with niunerou.s jiarietal ovules. 

 Style long, liliforin ; stignia.s 3-5, penicillate. Capsule indehiseent. Seeds 

 glohular. Knil)ryo in copious aliiunien. — >farine herlis, with creeping stems, 

 and o])pi)site pellucid stijiidate leaves. 



1. H. ( Engelmannii, Aschcrson. Stem filiform, much hranclied ; 

 leaves, seemingly whorled at the end of the branches, linear-oblong, 3-uerved, 

 sharply .serrulate (V or less long); flowers and fruit unknown. — Muddy 

 coves along the west coast of Florida. 



4. LIMNOBIUM, Kichard. 



Flowers monoecious, from a membranaceous UKJstly sessile spathe, peduncled. 

 Sterile spatlie entire, 2-3-tlowered ; the fertile 3-leaved, l-f1owereil. Sepals 

 and petals 3, united in the fertile flower, and coherent with the ovary. Star 

 mens 6-12, monadeljdious : anthers linear. Ovary 6— 9-celled, with as many 

 central placenta", forming a many-seeded ben-y in fruit. Stigmas 6-9, each 

 2-parted. — A floating aquatic herb, with copious pendent roots, loug-petioled 

 rouud-cordate and many-nerved leaves, and small white flowers. 



1. L. Spongia, liichard. Stems extensively proliferous ; leaves purplish 

 bcneatli, ami with air-cells near the ba.se; sterile peduncles tender, soon van- 

 ishing; the fertile conimoidy short and thick, recurved in fruit; petals ob- 

 long, alternating in the fertile flower with a pair of minute sterile filaments. 

 — Still water, Florida, and northward. July -August. 2/ — Leaves 2' -4' 

 wide. 



Order U3. BURMANXIACE/T:. (Bi-rmaxxia Family.) 



Small lierb.s, with filiform stems, scale-like leaves, and regular per- 

 fect dowers. — Sepals atid petals united to form a tubular unequally 

 6-cleft corolla-like perianth, with the tube coherent with the 1- or 3- 

 celled many-ovuled ovary. Stamens 3 or 6, inserted on the tube of 

 the perianth : anther cells separate, 2-Iobed, opening crosswise. Style 

 slender: stigmas 3, dilated. Placentae 3, central or parietal. Capsule 

 many-seeded. Seeds minute, with a loose or reticulated testa. 



1. BURMANNIA, L. 



Tube of the perianth mostly 3-angled or 3-winged, withering-persistent; 

 the three interior lol)cs smaller. Stamens 3, very short. Ovary 3-celled, 

 with three thick 2-lobed central placentae. Stigmas globose, dilated or 2- 



