;526 RESTIACE^. 



3. X. americana, JuU. Glabrous ; stem low, filiform, suboyliudrieal, mnch longer 

 -than the short leaves ; leaves setaceous-filiform ; head small, ovate-oblong, ir-i-floioered ; 

 bracts ovate-lanceolate, pointed or bluntish, entire : dorsal area oblong-Unear ; keel of the 

 lateral sepsfls smooth. — Aitbl. t. 14. — X. cscrulea, Lam. Abolboda Aubletii, Kth. — Habit of 

 X tenella, Kth. (Fl. Bras. 15. t. 28. f. 3), which is said to have broader leaves and hispi- 

 dulous sepals. 4"-5" high ; leaves very narrow, 6"'-10"', head li'" long ; corolla "blue ;" 

 stigmas capitate ; capside ellipsoidal, l-ceHed : central funiculi numerous, the interior two- 

 thirds as long as the valves.— Hab. Trinidad I, Fd., Savannah de Aripo ; [Guiana !, Brazil !]. 



2. MAYACA, Auhl. 



Sepals 3, herbaceous. Petals 3, distinct. Stamens alternating with the petals : anthers 

 opening at the summit. Style simple. Capsule 1-oelled : seeds costate, inserted along the 

 middle line of the valves. — Moss-like, creeping, or floating, leafy herbs ; leaves 1-uerved, 

 spreading; ^ei\aie\es axillary, \-flowered. 



4. M. fluTiatilis, Auhl. Leaves linear-acuminate or notched at the apex ; peduncles 

 spreading, half as long again or twice as long as the leaves ; petals " white;" anthers at 

 length 1-celled, corniculate at the summit, opening below it by a broad foramen ; capsule 

 ;8-6-seeded.— ^M«/. t. 15.— M. Aubletii, Schott, .©«&— Branches 2"-6", leaves 3'", sepals 

 and capsule 2'" long. — Hab. i^amaica !, Al., March ; Trinidad 1, Pd., Cr., iu wet places and 

 running streams of the savannahs ; [Guiana, Brazil !]. 



CXXXIV. EESTIACE^. 



Flowers glumaceous : perigone usually 2-seriate. Stamens 6-3. Ovary free, syncarpons, 

 rarely apocarpous: cells 1-ovulate : ovule pendulous, atropous. Seed of Xyrideie.-^'&as\i- 

 like herbs : flowers clustered in the axils of bracts, often unisexual. 



1. EEIOCAULON, L. 



Inflorescence androgynous. Perigone exterior 3-Z-phyllous, interior i 3-2-lobed, $ 3-2- 

 phyllous (" rarely none"). Stamens 6-4, at the summit of the perigonial tube : anthers 2- 

 celled. Style 3-2-fid : stigma simple. Capsule loculicide. — Leaves grass-like, often pel- 

 lucid, usually rosular ; scape (or peduncle) simple, included at the base within a closed 

 sheath ; flowers in a terminal, contracted, dense umbel ; interior perigone mostly with a 

 gland at the lobes. 



1. E. ceesium, Gr. {n.sp^. Stem \ong, submerged, leafy; leaves hair-shaped,flexuose, 

 1-nerved, internally partitioned, pellucid ; peduncles numerous at the summit of the stem, 

 3-4 times as long as the 3-4-dentate sheath ; heads (1'" diam.) lurid-grey, densely pubem- 

 lotis at the summit of the flowers ; exterior bracts roundish, glabrous ; <? flowers 6-androtts, 

 $ interior perigone glabrous, glandular ; seeds ovoid-oblong, nearly smooth. — Distinguished 

 from the allied E. melanocephalum, Kth., and the East Indian E. setaceum, L., by the 

 sheath, the bracts, and the down of the heads. Stem 4"-6" long, floating with the peduncles 

 incurved, covered its whole length by densely approximate, l"-2" long leaves; most pednn<- 

 cles 3"-4" long ; head depressed-globose ; flowers much exceeding the exterior bracts, ? nu- 

 merous, as long as their pedicel, (? exterior, shortly pedicellate-; 3 exterior perigonal leaflets 

 obovate, pnberulous above, 3 interior $ lobes as long as the filiform tube, unequal, oblong, 

 slightly puberulbns at the glandular extremity, 3 interior ? leaflets oblong-linear.— Hab. 

 Trinidad !, Or., in savannahs, Aripa, Omara. 



E. Sumboldtii, Kth. (a large, terrestrial species), and Papal^nthus faseieulatus, Kth. 

 (3-androus), occur in Mr. Purdie's Trinidad collection ; but of both Mr. Crueger doubts this 

 locality, while both are widely diffused on the continent. 



2. TONINA, Aubl. 

 Inflorescence androgynous. Perigone exterior 8-phjllous, interior ^ pyriform, 3-dentate, 



