Victorian Plants. 417 



CHIIiOGLOTTIS. 



1799. Upper lobe of the calyx quite narrow ; labellum 



broadest upward. 



Slender, never tall ; leaves mostly elliptic- or elongate- 

 lanceolar, generally almost sessile ; flowers except the 

 calyx-tube and gynostemium dull-purplish ; upper calyx- 

 lobe somewhat dilated near or above the middle ; paired 

 petals lanceolate-linear, bending downward ; labellum 

 almost rhomboid, more narrowed towards the base, above 

 imperfectly beset with small glandular usually numerous 

 callosities, and bearing a nearly central callous depressed 

 appendage ; gynostemium narrow, greenish ; fruit rather 

 turgid. C, diphylla. 



Upper lobe of the calyx quite broad ; labellum broadest 

 downward. 



Usually dwarf, but rather stout ; leaves mostly ovate- 

 lanceolar and short-stalked ; flower comparatively large, 

 dull-purplish or greenish ; bract conspicuous ; upper lobe 

 of the calyx lanceolar-ovate, lower quite narrow ; paired 

 petals oblique -lanceolar ; labellum nearly sessile, almost 

 cordate-ovate, somewhat pointed, beset with small cal- 

 losities towards the middle and base only ; fruit rather 

 turgid, its stalklet sometimes very much elongated. 



C. Gunnii. 



PTESLOSTYLIS. 



1800. Flowers two or more in the raceme or spike, excep- 



tionally one ... ... ... ... ... ... 1801 



Flower always one only ... ... ... ... 1806 



1801. Lower and upper calyx-lobes nearly parallel ... 1802 

 Lower calyx-lobes divergent from the upper ... 1803 



1802. Calyx-lobes acute. 



Basal leaves small, few, on a shoot distinct from the flowering 

 stem, rhomboid-ovate ; stem-leaves two or three, almost 

 bract-like, distant ; bracts rather conspicuous ; flowers 

 small, from two to several, anteriorely often somewhat 

 tinged with red ; lower calyx -lobes connate to beyond the 

 middle, hardly reaching to the summit of the upper calyx- 

 lobes ; labellum glabrous, linear-elliptical, its basal ap- 

 pendage slightly setular ; gynostemium suddenly dilated 

 near the summit, and bearing two minute linear erect 

 segments ; fruit somewhat turgid. P. parviflora. 



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