UOTANY OF FOUR IMPORTANT SAPIXDACEOUH FRUITS 35 



aa Leaflets with lateral veins more or less conspicuous. 

 Calyx 1/2 cleft ; petals five. Fruit smaller than 

 above, smooth and yellow. Euphoria lon<)<in<t 

 Lam., (fig. 59), the lungan of commerce. 



B. Fruits with arillus adherent to the seed 



2 The RAMBUTAN GROUP comprising the genus 

 Nephelium and two other genera, including in all about 

 45 species. 



a Leaflets 2-12. Fruit echinate-muricate with long, 

 hairy setae, 1/2 to 2 in. long; red, yellowish, 

 orange or nearly black. Xc^hcUiltn lappaccitm 

 Linn., the rambutan. 



aa Leaflets 4-8. Fruit echinate-muricate with strong, 

 rigid setae, 1 to 1 1/2 in. long; red; aril separates 

 more readily from the seed than in the former. 

 Xrphcliitni nnilabik Blume. the pulassan. 



1 1 Fruits dehiscent 



3 The TITOKI GROUP with 5 genera including in all 

 about 28 species. 



Of the three groups above represented, the lychee group is of 

 the most importance inasmuch as it contains the species most com- 

 monly represented in China and the Philippines and especially as it 

 contains the two most highly prized and commercially developed of 

 the four fruits. The titoki group is of no special significance in this 

 study. 



THK LYCHKE GRC.UP 



Litcki ch-inensits Sonn. * Voy. p. 240. vl/82) 



Litclti phiiippine sis Radlk. in Philip. Journ. Sci. 8 

 (C, 6): 458. (1913) 



Otonephelium stipalaccum Radlk. in Kngl. & Prantl. 

 Natl. Pfl.-fam., 3.V:329. (1895) 



Xe ph e I i \i m stip ida a u m Bedd. in Madias Journ. 

 ser. 3, no. 1. p. "39. (1864) 



Pstudoncphdmm funialum Radlk. in Knrrl. c ^ Plant. 



Natl. Pfl.-fam., 3.V:329. (-1895) 



