86 



A NATURALIST^ 8 WANDERINOS 



tains any nectar. The column, embraced by the labellum, is 

 massive, expanding into a stigma eleven millimetres broad, 

 secreting an abundance of viscid matter, crowned with the 

 anther and its pollen, whose caudicles, composed of pollen 



FIG. 1. — PHAJCS BIXMBI, SHOWING AN- 

 THER TVITH POLl IKIA EEMOTED ; 

 C, BTIGMA ; F, BASE OP ANTHER ; 

 0, nOSTELLUM. 



\l"he following figures are all sligMlij 

 diagrammatic.'] 



PIG. 2. — PHAJUS BLUMET, SHOWIKG THE 

 rOLLlNIA AVALAKOHED DOWN- 

 WARDS, CAERTINQ WITH THEM THE 

 ROSTELLTIM, G; A, ANTHEE-OAP ; P, 

 SWOLLEN POLLINIA ; C, STIGMA ; 

 E, TIP OP CAUDICLES OP POLLINIA. 



grains, protrude their tips from beneath the anther-cap. I exa- 

 mined more than one hundred and fifty flowers of P. Blumei, 

 but I did not find one that was not, or could be otherwise than, 

 self-fertilised. Its essential organs exist in two forms, slightly 

 but interestingly different. 



PIG. 3. — BCD OP PHAJUS BLUMEI, SHOW- 

 IKG POLLINIA IN ERECT POSITION; 

 A, ANTHEE-CAP ; B, POLLINIA ; C, 

 STIGMA ; D, MEDIAN RIDGE. 



4. — LONGITUDINAL SECTION OF 

 COLUMN OP i-HAJCS BLUMEI (SIDE 

 view) ; A, P, C, D, AS IN PIG. 3 ; 

 1, BOUNDAET OP STIGMA. 



Flowers of the first form have, arching over the deep and 

 covered stigma, a well-developed tongue-shaped projection or 

 rostellum, on which lie the caudicles of the pollinia, which 

 have no viscid disk (Fig. 1). On each side, the rostellum 

 leaves between itself and the external walls of the column a 



