443 
30. Oxygonum alatum. 
Planta annua monoica. Folia lanceolata, incisa, et Integra. Flores spicati pedunculati ; 
plures in spic® articulis. Flores masculi incarnati quadrifidi, laciniis patentibus obova- 
tis petaloideis. Filamenta elongata octo. Antherse ovatae. Fructus oblongus, angulis 
3 membranaceo-alatis. BurcheWs Travels, 1. 548. 
n. Pilitis. 
♦alyx foliaceus, pungens. Corolla calyptraeformis, transversim dehiscens, b£isi truncata 
persistente. Stamina hypogyna, persistentia. Squamae hypogynae bilobae. — Frutex 
ramis annulatim cicatrizatis. Folia glaberrima basi cucullata acerosa. Capitula florum 
terminalia ovata, bracteis ovatis imbricatis pungentibus. — Sp. 1. Pilitis acerosa. In 
Insula Van Diemen. Gunn (No. 307.) 
32. Desfontainia. R. et P. 
This is more nearly related to these than to any other plants with which I am acquainted. 
It obviously differs in the great developement of its corolla and its indefinite seeds — as 
it also may in the structure of the latter, but these are at present unknown. It has 
surely no kind of relation to Gentianaceae, to which Don has referred it. 
33. Cantua quercifolia. Juss. 
This is a different genus from the remainder of the species. 
34. Cyananthus. Wall. 
Placed here at the suggestion of Mr. Bentham. 
35. Diapensia. L. 
Sepala foliacea, duobus interioribus duplo minoribus. Antherae valvulis muticis. Semina 
indefinita. 
36. Pyxidanthera. MicJix. 
Sepala membranacea subaequalia. Antherae valvulis inferioribus aristatis. Semina cuique 
loculo 7. 
37. Pogonetes. 
Est Scaevola spinescens. R. Br. 
38. Scalesia. Arnott. (Heliantheae Heliopsidese) . 
Capitulum homogamum. Antherae nigricantes, exsertae, ecaudatae, alls cordato-oblongis. 
Stylus Tagetis, Achenium compressum, obcordatum, omnino calvum, conforme, gla- 
brum, disco epigyno inconspicuo. — Frutex. Involucrum biseriale. Capitula basi intrusa 
axillaria, brevi-pedunculata. Folia lineari-lanceolata, utrinque attenuata, alterna, supra 
scabriuscula, subtus pubescentia, integerrima. Sp. 1. Sc. atractyloides in insulis GaJli- 
pagos. Arnott. in litt, 
39. Eriopappus. Arnott, 
Styli disci rami elongati pubescentes cono brevi terminati ; Pappus radii deest ; disci e pa- 
leis 9-12, uniserialibus lineari -longeacuminatis obsolete uninerviis serrulatis basi extus 
longepilosis intusque villoso-lanatis. Near to Allocarpus. — Blepharipappus glandulosus 
Hooker. Arnott in litt. 
40. Uncaria. 
Genus est Martyniae affine ; a quo capsulae forma, (vide iconem magnitudine natural!, in 
pag. 529.) satis diflfert. 
Uncaria procumbens, B. Catal. Geogr. 1970. Caules plures prostrati parum ramosi. Calycis 
foliola 5 linearia acuta. Corolla infundibuliformis, tubo basi angustato, limbi laciniis 
rotundatis aequalibus. Stamina 4 didynama, pistillumque corolla duplo breviora. Cap- 
sula bilocularis lignosa, angulis lobato-alatis, lobis uncinatis. Semina numerosa oblonga an- 
gulata rugosa. Tota planta, sub lente visa, punctulis numerosis albis conspersa est. Bur- 
cheWs Travels, 1.536. 
41. Rhigozum. 
Frutex 6-pedalis. Ramuli alterni horizontales. Folia obovata. The name of Rhigozum is 
