128 



CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Fig. 3. r . 



-Flower and anthers of Frantzia montana. a, Male flower; 

 b, anthers, a, b, Scale fi. 



Type species F. pittieri. 

 Leaves partly hairy, densely covered with conspicuous white dots, and 



narrowly 34obate F. montana. 



Leaves quite glabrous, entire or broadly 3 to 5-lobate F. pittieri. 



1. Frantzia montana Pittier, sp. nov. Figures 35, 36. 



A climbing vine. Stems rather slender, sulcate, glabrous. 

 Petioles slender, striate, smooth, 3 to 4 cm. long. Leaf blades 8 to 10 cm. long, 7 to 



12 cm. broad, coriaceous, dark green, glabrous, except on the main ribs, and densely 



covered with white dots 

 above, paler or brownish 

 and more or less hairy- 

 scabrous beneath, broadly 

 emarginate, divided al- 

 most to the base into 3 

 more or less parted lobes; 

 main ribs hairy above, 

 prominent and more or 

 less scabrous-puberulent, 

 as are the primary veins, 

 on the lower face; median 

 lobe varying from nar- 

 rowly lanceolate (7.5 cm. 

 long, 1.5 cm. broad) to 

 obovate-acuminate (8 cm. 

 long, 3 cm. broad); lateral 

 lobes broader, more or less 



falciform and auriculate; interlobular sinuses sometimes very narrow, sometimes 



broadly open; margins more or less sinuate-dentate. Tendrils 3 to 4-fid, glabrous, the 



peduncle striate, about 2 cm. long. 



Rachis of the male inflorescence 15 to 28 cm, long, rather slender, striate, glabrous. 



Flowers in sessile or short-stipitate clusters; pedicels filiform, smooth, 3 to 5 mm. long. 



Calyx cupuliform, about 4 mm. in diameter, sparsely covered with short, appressed 



hairs; teeth rounded-subulate, 0.5 to 0.7 mm. long. Nectaries forming a spongy, 



transparent cushion; walls 



dividing the nectary cells 



not visible. Corolla pale 



yellow, sparsely covered 



outside with short, brown- 

 ish hairs, smooth or slightly 



papillose inside; lobes 



broadly lanceolate, rounded 



at tip, 3.5 mm. long, 2 mm. 



broad, bearing 7 brown, sali- 

 ent, longitudinal striae. 



Staminal column 1 to 1.2 



mm. long; anthers more or 



less coherent, in a head about 1.7 mm. in diameter. Female flowers not seen. Fruit 



ovoid, about 4.5 cm. long and 3 cm. in diameter, echinate; spines hard, acute, arcuate. 



Seed compressed, smooth, 2 cm. long, 1 cm. broad. 

 Costa Rica: Climbing on old trunks in the pastures on Ihe slopes of the Turrialba 



Volcano, at an altitude of 2,500 meters, Pittier, flowers and fruits, January 1, 1899 



(Instituto fis.-geog. Costa Rica, no. 13192, type); bushes at La Laguna del Copey, 1 ,800 



meters above sea level, Tonduz, flowers, April, 1898 (Instituto fis.-geog. Costa Rica 



no. 12223). 



Fig. 36.— Leaves of Frantzia montana. a, b, Kxlreine forms. Scale J. 



