NEOTTEJE—DIURIDAE. | 507 
to ascertain more from them than is conveyed in the short specific phrases 
given in Brown's prodromus. 
§ 1. Labellum basi bicarinatum. 
$1. * Labelli lacinie subequales. 
1. Dionis maculata. Smith Exot. Bot. t. 30. R. Brown, prodr. 315. 
D. foliis filiformibus v. angustissim? ensiformibus scapo brevioribus, 
floribus maculatis, sepalis lateralibus petalis brevioribus, petalis rhombeis 
acutis, labelli bicarinati laciniis subaequalibus lateralibus oblongis sub- 
denticulatis intermediá subrotundà planà, columne laciniis linearibus 
acute incisis. 
Hab. in Australia, ad Portum Jackson, R. Brown. (hab. s. sp.) 
Petals speckled, with a purple claw. Back sepal with a dark curved 
band drawn balf across the middle. Lip with purple blotches. 
It is generally alleged that the markings upon the flowers of this genus 
are variable and not to be depended upon for specific distinctions ; but 
Mr. Gunn finds them very permanent, and my observations confirm his 
statement. 
2. Divris pardina. 
D. foliis ensiformibus canaliculatis scapi longitudine, floribus maculatis, 
sepalis lateralibus lineari-lanceolatis petalis æqualibus, petalis subro- 
tundis, labelli bicarinati laciniis subzequalibus oblongis obtusis lateralibus 
integerrimis, columnz laciniis acutis rectis sinuato-serratis. 
Hab. in Australie orà meridionali. (hab. s. sp.) 
The back sepal has two deep eyes, with or without a broken purple 
border; the petals are bordered and blotched with purple, which colour 
also occupies the claw. 
3. Divnis curvifolia. 
D. foliis linearibus canaliculatis arcuatis scapo subtrifloro brevioribus, 
floribus maculatis, sepalis lateralibus linearibus petalis equalibus, petalis 
oblongis obtusis, labelli bicarinati laciniis lateralibus linearibus paulà 
brevioribus apice denticulatis intermedia cuneatà rotundatà integerrimá, 
columna laciniis ovatis acutis serratis. 
D. maculata. Bot. Mag. t. 3156. ? 
Hab. in Tasmannia, Gunn 343. (hab. s. sp.) 
Stem rather more than 6 inches high. Flowers rather larger than in 
D. maculata ; petals whole coloured except on the claw, which is purple. 
Back sepal with two eyes connected by a band. Lip with a broad blotch 
in the middle of the central lobe and at the tip of each lateral lobe. 
I have never seen any Diuris exactly like that figured in the Botanical 
Magazine, t. 3156. It is certainly not D. maculata, as it is named, but it 
may possibly be intended for this, which however has not the dorsal sepal 
toothed nor the side lobes of the lip so much serrated or so small as they 
are there represented. 
4. Divnis palustris. 
D. foliis filiformibus scapo corymboso equalibus, floribus maculatis, sepalis 
lateralibus petalis nonnihil longioribus, petalis ovalibus obtusis, labelli 
