322 ON SEEDLINGS 



characteristically strong-smelling stems and leaves ; petioles semi- 

 terete, channelled above. 



No. 1. 2-5-3 cm. long (including petiole 5 mm.), 6-8 mm. 

 broad, lanceolate, acuminate at both ends, crenulate or bicrenulate, 

 pinnatinerved, rugose, firm, not very thick, dark green above, light 

 shining green beneath, with a tomentose bud in axil of petiole. 



No. 2. Similar, but larger, and with a small leaflet at base of 

 blade. 



No. 3. Similar, ternately pinnate with large terminal leaflet, 

 sometimes two large and two small leaflets. 



Ptelea trifoliata, L. 



Hypocotyl finely and minutely pubescent, 8-15 mm. long. 



Cotyledons unequally oblong, obtuse, shortly petiolate, finely 

 crenulate, deep green, rather opaque, alternately and ascendingly 

 penninerved, glabrous except on the midrib beneath ; lamina 10-15 

 mm. long, 5-7 mm. broad ; petiole slightly grooved above, pubescent 

 beneath only, 2-2-75 mm. long. 



Stem pubescent with curved or curled hairs, ultimately woody ; 

 1st internode 3'5-5'5 or 6 mm. long, 2nd -5-1-25 mm. 



Leaves trifoliolate, hairy on the midrib and margins of leaflet and 

 petiole when young, ultimately glabrous ; leaflets alternately and 

 ascendingly penninerved ; petioles semiterete, channelled above. 



Nos. 1 and 2. Usually trifoliolate ; terminal leaflet elliptic, obtuse, 

 irregularly and obtusely dentate ; lateral leaflets smaller, sometimes 

 very much smaller, oblong- elliptic, obtuse, irregularly and obtusely 

 dentate. Sometimes one of the lateral leaflets of the first leaf is 

 wanting. 



Limonia acidissima, L. 



Hypocotyl becoming woody, erect, terete, finely pubescent, wiry, 

 pale green, 2-3-2-9 cm. long. 



Cotyledons two, rarely three, mostly alternate, fleshy, oblong, 

 obtuse, pale green, finely pubescent, sessile or subsessile, somewhat 

 notched at the base. 



Stem woody, erect, terete, finely pubescent, wiry ; 1st internode 

 variable, 1-6-2-3 cm. long ; 2nd 2 mm. ; 3rd 3 mm. ; 4th 7*5 mm. 



Leaves compound, cauline, alternate, exstipulate, petiolate, gla- 

 brous, deep green, shining, pubescent on the nerves beneath when 

 young, permeated with translucent glands, doubly crenulate, emar- 

 ginate; petioles subpubescent, winged with a prominent midrib, 

 and tapering towards the base. 



