PITTIER TREATMENT OF THE GENUS CASTILLA. 263 



1. Castilla ulei Warburg, Bot. Jahrb. Engler 35: 054. 1905. Plate 22. 

 A tree 20 to 40 meters high, with long, spreading, superficial roots. Twigs 



terete, 3 to 4 mm. in diameter, at first densely hairy, ferruginose-tomentose, 

 later sparsely covered with oppressed, stiff hairs; bark brownish. 



Petioles short (9.5 cm.), slender and hairy. Leaf blades oblong, 12 to 24 cm. 

 long, 4 to G cm. broad, rounded or subtruncate and slightly oblique at base, 

 briefly acuminate or apiculate at tip, densely villose-ferruginose when young, 

 then hispid-glabrescont above, pale and tomentose beneath; margin subeutire, 

 minutely setose-denticulate. Stipules caducous, large, spathiform, lanceolate, 

 villose-ferruginose. their annular scars 4 cm. long and 1 cm. broad. 



Inflorescences not known. 



Fruit receptacles solitary in foliate or defoliate axils, almost sessile, globose 

 and slightly flattened at base, 2 cm. long and 2.5 cm. in diameter when dry, but 

 larger in the fresh condition, covered outside to the apex with imbricate bracts 

 (scales), 3 to 5-seeded. Seeds oblong with three flattened sides, 12 mm. long, 

 mm. in diameter, surrounded by a soft pulp ; testa very thin ; endosperm want- 

 ing; cotyledons thick (according to Warburg and Ule, loc. cit. ). 



Brazil: Marary, September 18, 1909, Ule 5359; Belem, Jurua Miry, October, 

 1900, Ule 5900. 



This species is distinctly characterized by its remarkable fruits, which are 

 said to be edible when in fresh condition. The leaves are smaller than in any 

 other species of the genus and the seeds proportionately longer. 



Explanation- of Plate 22. — A, branchlet with female flower: B, fruit ; C and D, cross- 

 sections of fruit ; E, seed. A, one-half natural size ; B-E, natural size. 



2. Castilla fallax Cook, Science n. ser. 18:43X. 1903. 



Plate 23. Figures 45, 4(i. 



VdHtilloa tunu Ilenisl. Hook. Icon. PL IV. 7: pi. 2651. f. 1-7 (J. 8-15 excl.) 

 1900, in part. 



A medium-sized tree. Floriferous branchlets thick, filled with a whitish pith, 

 covered outside with a dense growth of stiff, appressed hairs. Internodes 3.5 

 to 4 cm. long. 



Leaves rather large and coarse. Petioles thick, 1.5 to 2 cm. long hairy, sili- 

 cate. Leaf blades 30 to 40 cm. long, 10 to IT) cm. broad, oblong or lanceolate- 

 oblong, rounded or subacute at. base, acuminate, deep green, 

 rough and provided with scanty appressed hairs above, 

 paler and covered with a short, appressed pubescence 

 beneath; midrib and primary veins very prominent; margin 

 of young leaves minutely dentate, but becoming entire with 

 maturity. Stipules caducous, rathe]- short (4 to 5 cm.), 

 marked with wide-spaced, longitudinal ribs, smooth and 



hairy outside, glabrous and purplish within. ,„ ._ ,, , . 



J ' ° Fig. 45. — Male in- 



lteceptacles of the primary staminate inflorescence sessile florescence of 



or subsessile, single or in pairs in the axils of leaves, small Castilla fallax. 



(1.5 to 2 cm. across), flabellate and opening by a long, Scale 3. 



arcuate slit. Outer scales small (1.5 mm. long, 1.5 to 

 2 mm. broad), scarcely concrescent, hairy outside. Interstaminate bracts few, 

 small, triangular, subciliate. Stamens 1 to 1.5 nun. long; filament short; con- 

 nective very thick, with a few stiff hairs on the median line; anther cells small, 

 glabrous. 



Secondary staminate inflorescence wanting on specimens examined. 



Receptacles of the pistillate inflorescence solitary, sessile, rather small. 

 Scales free, broadly ovate-triangular, acuminate, silky outside, smooth inside. 

 Flowers free to the base. Perianth thick, about 4 nun. long, densely silky out- 



