﻿STAUROCHLAMYS BTTRCHELLII, Baker. 

 Composite. Tribe Helianthoideje. 



Staurochlamys, Baker (gen. novum). Gapitula heterogama radiata, 

 floribus radii f cemineis fertilibus, disci bermaphroditis fertilibus. Invo- 

 hirrvm triplex, bracteis 2 exterioribus parvis foliaceis, centrabbus 

 2 magnis rotundatis foliaceis, interioribus 4 rigidulis linearibus. Be- 

 ceptaculum planum, paleis magnis complicatis flores amplectentibus 

 onustum. Gorollce tubo cylindrico, limbo in floribus radii patulo, seg- 

 ments tribus oblongis, in floribus disci campanulato, segmentis 

 5 ovatis. Antherce basi baud caudat®. Styli rami breves, apice 

 stigmatoso truncati. Achamia cylindrico-tetragona calva. 



S. Burchellii, species sola. 



Hab. Porto Real, Nortb Brazil, Burchell, 8679-6. 



Herba annua erecta laxe ramosa, ramulis gracilibus ascendentibus 

 pubescentibus. Folia opposita breviter petiolata oblongo-lanceolata 

 membranacea subintegra trinervata C \>ifula ad ramulorum apices 

 solitaria, pauciflora, pedunculis gracilibus elongatis. Bractem loiiace© 

 centrales rotundata? 3-4 lin. latae. Corollas luteae l£-2 lm. longse. 

 Achcenia glabra 1^ lin. longa. 



Allied to Elvira and Melampodium. — J- G-. Bakek. 



Fig. 1. Foliaceous bracts of the involucre. 2. Palese of the receptacle^ J-^ 3 ^ 

 6. Stamens. 7. Apex of the style. All more or less enlarged. 



