450 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



upper end; leaf blades 5 to 12 cm. long, 4 to 7 cm. broad, ovate, obtuse at base, end- 

 ing abruptly in a very sharp and narrow acumen; upper face light green, showing 

 the impressed venation; lower face pale, glaucous, with a more or less pinkish hue 

 the main nerves, veins, and anastomosing venules quite prominent. Stipules early 

 caducous, 8 mm. long, 5 mm. broad at base, ovate-acute, almost subulate and hairy 

 at the tip, purplish or brownish with numerous dark stria;. 



Panicles axillary at the ends of the branchlets, simple, up to C cm. long, the rachis 

 and pedicels hairy-tomentose. Bracts early deciduous, about 8 mm Ion* conch- 

 hke and acute at the tip, minutely hairy outside, dark-colored and striate. °Pedicels 

 5 mm. long. Calyx of the male flower dark brown in dry specimens, densely gray- 

 tomentose outside, hairy inside, 9 mm. long, deeply 5-cleft; segments linear-lanceo- 

 late subacute, 6.5 mm. long, 2 mm. broad, with 3 to 5 dark longitudinal lines and 

 a short, barbate appendage transversely inserted at the middle. Androphorum 



filiform, 5.5 mm. long, thickened 

 and covered with short, many- 

 celled, apparently glandular hairs 

 at the base, smooth above; staminal 

 tube pend ulous, small , salver-shaped 

 or suburceolate, glabrous; anthers 

 10, biseriate, stipitate, crowded, the 

 5 exterior ones larger; rudiments of 

 the pistil quite obsolete. Calyx of 

 the female (or monoclinous) flowers 

 as in the male flower but larger 

 (about 11 mm. long), the lobes half 

 spreading, nearly 9 mm. long, 2.5 

 mm. broad at the base. Gynophorum 

 suberect, thick, glabrous except at 

 the enlarged base (as in the andro- 

 phorum) , about 5 mm. long; staminal 

 tube cupuliform, glabrous, about 2 

 mm. in diameter and 0.8 mm. high; 

 stamens 10, those of the outer series 

 conspicuously larger. Ovary de- 

 pressed-globose, with 5 separate car- 

 pels and densely covered, as is the 

 style, with coarse, unicellular, bi- 

 furcate or trifurcate hairs, the style 

 thick, 1.8 mm. long; ovules in each 

 carpel 4 to G; stigma capitellate, 

 indistinctly 5-lobulate, glabrous. 

 Mature carpids 5, large (10 to 15 cm. long and up to 12 cm. in diameter), obovate, 

 borne on a thick peduncle 10 cm. long. 



Type in the U. S. National Herbarium, no. 578036, collected at Las Delicias del 

 Reventazon, plains of Santa Clara, altitude about 40 meters, September, 1901 by 

 H. Pittier. Flowers and fruits. Same in Institute ffs. geog. Costa Rica (no. 16172). 



GUTTIFERAE. 



OLD AND NEW SPECIES OF SEVERAL GENERA. 



Hypericum epigeium Keller, Bull. Herb. Boiss. II. 8 : 183. 1908. Figure 79 



• ?T ' 8 "f rutesccDt P lant > ™ th underground stems emitting numerous, mostly 



simple branchlets, 10 to 20 cm. long, more or less densely foliose, 4-angled. Leaves 



elliptic, amplexicaul, obtuse or rounded at tip; intraparenchymalous glands mostly 



Pig. -tl.StercuUacostarkana, corollas of (a) male and (b) 

 female flowers, showing comparative size. Scale G. 



