Page 429: Revision of Pandanus, 27 — St. John 
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Fig. 255 b. Pandanus circularis St. John, holotype. Pop, leaves bent back to show the infructescence; 
bottom, Pandanus dauphinensis Martelli in Martelli & Pic. Ser., grove at seaward edge of dunes, 2 km 
north of Fort-Dauphin. 
midsection the margins with prickles 1.5-2. 2 
mm long, and 5-11 apart. P. circularis has the 
peduncle 3 6 cm long; phalanges 3.5-4 cm long, 
2. 7-3. 8 cm wide, 4-9-celled; endocarp lateral 
walls 4-6 mm thick; leaves 2.35-2.6 m long, 
14-15 cm wide, at midsection with 72 secondary 
parallel veins in each half, and at midsection 
the margins with spines 3. 5-5. 5 mm long, 5- 
18 mm apart. 
The new epithet is the Latin circularis, in a 
circle, a name given in reference to the place- 
ment of the stigmas on an apical circle or hexa- 
gon. 
Pandanus dauphinensis Martelli in Martelli & 
Pichi-Sermolli, Inst. Sci. Madagascar, Ser. B, 
Mem. 3(l):38-40, fig. 5, 1951 (sect. Dauphi- 
nensia ) 
Figs. 255 h bottom, 256, 257, 26l top left. 
description from St. John 26,379: Tree 
3-8 m tall, 15-20 cm in diameter, branchlets 
several, 12 cm in diameter below the leaves and 
clothed for some distance with marcescent leaf 
bases; crown broad; bark of trunk light brown, 
with a few conic spines or later with a few 
ascending rootlets; prop roots none; leaves 
