500 



ON SEEDLINGS 



FIG. 824. 



Cratcegua Oxyacantha 

 (from dry specimen). 

 Nat. size. 



No. 8. Pinnately five-foliolate ; lateral 

 leaflets ovate, acute, serrate ; terminal 

 leaflet cuneate, trifid and serrate. 



No. 4. Similar ; lateral leaflets acutely 

 serrate ; terminal leaflet triangular- ovate, 

 acute, tripartite, acutely serrate. 



Ultimate leaves pinnate, of seven to 

 fifteen pairs of leaflets, deep green and gla- 

 brous above, whitish and downy on the 

 underside and on the petioles and midrib ; 

 leaflets oblong, acute, unequal at the base 

 of the posterior side, acutely and rather 

 evenly serrate, in opposite pairs. 



Tubeuf (I.e. p. 71) describes fruit 

 and seeds of Pyrus communis (Pear), 

 P. Malus (Apple), and Cydonia vulgaris 

 (Quince), and also on page 125 the seed- 

 lings with figures of the two last. P. 

 Malus has thick, rotund-ovate, almost ses- 

 sile cotyledons, and doubly serrate, acute 

 primary leaves. Cydonia vulgaris has 

 roundly obovate cotyledons, an obtuse apex, 

 and gradually tapering base. The primary 

 leaves are oval to ovate and very finely 

 serrate. 



Crataegus Oxyacantha, 1 L. (fig. 324). 



Primary root long, slender, tapering, 

 wiry, with slender lateral fibres, flexuose. 



Hypocotyl woody, erect, terete, brown, 

 glabrous, 2'5^4'5 cm. long. 



Cotyledons subfoliaceous, subcoriaceous, 

 obovate-oblong, obtuse, glabrous, green, 

 changing to brown, rather persistent, nar- 

 rowed at the base or shortly petiolate, 1-1-2 

 cm. long, 5-6 mm. wide, obscurely tri- 

 nerved. 



Stem woody, erect, terete or subangled, 

 hairy, brownish ; 1st internode 6*5 mm. 

 long ; 2nd 3'5 mm. ; 3rd 2-5 mm. 



Leaves simple, cauline, alternate, stipu- 



Cf. Tubeuf, I.e. 124, fig. 168. 



