Pomona College Journal of Economic Botany 359 



spieuously biauricled, or cordate-sagittate, acute with the cells slightly divar- 

 icate, united by a broad black connective ; the rudiment of the ovary is repre- 

 sented by a small trilobed tubercle, placed on the summit of the staminal 

 column, in the center, between the radiating filaments. 



The female flowers, when the males open, are very little evolute and are 

 pressed between and behind these ; I have not seen them at the time of flower- 

 ing, but judging from the perianths at the base of the fruits they appear to 

 be 4 mm. long and with the sepals scarious, imbricate, lanceolate and very 



J Figure 146. Calyptrogyne swartzii, a, portion of flowering branchlet, one male 

 flower is open, the others are still closed; b, entire male flower during the^ 

 anthesis; c, male flower from which a portion of the corolla has been removed; 

 d, very young female flower; e, urceolum enveloping the ovary, formed by the 

 staminodes from the above female flower; f, fruit with its perianth; g, fruit 

 with its perianth removed to show the remains of the abortive carpels at ita 

 base; h, the putamen. The flowers from Wright No. 1466; the fruit from Van 

 Hermann No. 875. 



sharply keeled ; the petals are also scarious, somewhat longer than the petals, 

 imbricate at the base and with valvate apices. From what can be judged by 

 the very young female flowers, the staminodes form a thin, membranous, 

 conical tube, entirely enveloping the ovary and crowned by si.x narrow teeth. 

 The ovary is trigonous and narrows abruptly into the style, which is divided 

 into three linear stigmas. 



Fruit (when dry) broadly ovoid, about 1 cm. long, 8 mm. broad, with a 

 smooth surface and rounded at both ends; it bears the remains of the sterile 

 loges, and of the style, at its base in the form of an inconspicuous tubercle 



