160 Mr. Gardner's Description o/'Peltophyllum. 



extrorse anthers. From these considerations I propose to constitute a distinct 

 order for the reception of these two genera, which will hold the same relation 

 to the Syncarpous orders of Dictyogens, as Menispermacece does to those of 

 Homogens ; and which, in the mean time, may be thus characterized : — 



Triurace^. 



Herba parvulae, perennes, rhizomate repente ? Folia solitaria, a scapo distantia, longe petio- 

 lata, nervosa, integerrima. VagiruB ad basin petiolorum membranaceae. Scopus sub- 

 ramosus, basi squamosus. Flores regulares, dioici ; pedicellis unifloris, bracteatis. Pe- 

 rigonium corollinum, 3—6 partitum, patens, persistens, laciniis longe acuminatis, aestiva- 

 tione basi valvatis, acumine interdum tubuloso, ante anthesin gyrato incluso. Stamina 

 3-6? AnthercR extrorsae, loculis disjunctis, imo androphoro magno carnoso centrali 

 insertae. Ovaria plurima, in tori apice sessilia, adpressa, libera. Ovula in loculis soli- 

 taria ? Styli sublaterales, subidati vel ad apicem incrassati et oblique truncati. Fructus 

 ignotus. 



EXPLANATION OF TAB. XV. 



Fig. 1 & 2. Scapes of Peltophyllum luteum, of the natural size. 



3. A scape, magnified. 



4. A leaf, of the natural size. 



5. A carpel, magnified. 



6. A segment of the flower, seen from without. 



7. A representation of a segment of Triuris hyalina, in the expanded state, showing the 



entrance to the tube. 



8. The same in its half-expanded state. 



Glasgow, April 4th, 1843. 



