470 ON SEEDLINGS 



pinnate ; leaflets opposite, oblong, obtuse, apiculate, folding up face 

 to face and imbricating longitudinally on their own rachis when the 

 temperature is low or towards evening. 



Dichrostachys cinerea, Wight et Arn. 



Hypocotyl woody, erect, terete, thinly pubescent, soon losing it s 

 epidermis and becoming greyish. 



Cotyledons oblong-ovate, obtuse, cordate and three- or faintly 

 five-nerved at the base, deep subglaucous-green above, paler bene ath, 

 glabrous, erect, very shortly petiolate, 1 cm. long, 8 mm. broad. 



Stem woody, erect, terete, pubescent, pale green ; 1st internode 

 undeveloped; 2nd 1-25 cm long ; 3rd T6 cm.; 4th 1*1 cm.; 5th 

 1-15 cm. ; 6th 9 mm. 



Leaves abruptly uni- to bi-pinnate, cauline, alternate, stipulate, 

 petiolate, ciliate on the margins of the leaflets, deep glaucous -green 

 above, glaucous beneath ; leaflets folded upwards and forwards, im- 

 bricate with lower ones always outside the upper when the temper- 

 ature is low ; petioles subterete, channelled above, pubescent, articu- 

 lated with a large swollen base, excurrent between the pinnae with 

 a small subulate point ; rachis with a small cylindrical gland on the 

 upper side between each pair of pinnae ; stipules slender, subulate, 

 attenuate. 



No. 1. Pinnate with about ten pairs of opposite, linear-oblong, 

 acute leaflets. 



No. 2. Bipinnate with one pair of pinnae. 



No. 3. Bipinnate with two pairs of pinnae. 



No. 4. Ditto. 



No. 5. With three pairs of pinnae. 



No. 6. With four pairs of pinnas ; leaflets linear-oblong or oblong, 

 acute, fewer than those of the four leaves immediately below ; lower 

 pair of pinnae unequal, one pinna linear-oblong, acute, undivided, 

 the other pinna divided into four leaflets on the posterior side, and 

 undivided on the anterior side or that next the rachis. 



This reversion is pretty frequent. 



TBIBE EuMmosE-as. 



Leucaena glauca, Benth. (fig. 307). 



Hypocotyl rather woody, about 2-5 cm. long and 1-1-5 mm. thick, 

 terete, with a corky collar just above the surface of the ground, 

 pubescent, whitish-green. 



Cotyledons with short, connate, pubescent petioles, 1'5 cm. long, 

 1 cm. broad, and 1 mm. thick, oval or obovate, sagittate at the 



