124 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.54, 



Wyoming. Such comparisons are not worth much, however, since 

 there are a large number of described fossil species from a variety of 

 horizons that are very similar to the present species. Among recent 

 species it is said to much resemble Myrica microcarpa Bentham of 

 Jamaica. I have been unable to see specimens of Myrica variihractea 

 De Candolle and Myrica weherhaueri De CandoUe, which occur in the 

 existing flora of the interandcan region of central Peru. 

 Plesioty pes. —Cat. Nos. 35081, c5082, U.S.N.M. 



MYRICA ENGELHARDTII Britton. 



Myrica engelhardtii Beitton, Trans. Amer. Inst. Min. Eng., vol. 21, 1893, p. 258, 

 fig. 19. 



Description. — -Leaves of small size, sessile, obtusely pointed at the 

 apex, narrowly cuneate at the base. Margins with remote, small 

 serrate teeth. Length, about 2.5 cm.; maximum width, about 6 mm. 

 Midrib stout, slightly curved. Secondaries thin, numerous, regularly 

 spaced, straight, subparallel, craspedodrome; about 17 pairs diverge 

 from the midrib at wide angles and terminate in the marginal teeth. 



This species was described from Potosi by Britton and was based 

 upon the single specimen figured. It is not contained in the collec- 

 tions studied by me. 



In view of its rarity and small size and in consideration of the 

 variability of the very abundant Myrica hanksioides Engelhardt, it 

 seems probable that Myrica engelhardtii is simply a small leafed 

 variant of that species. 



MYRICA WENDTII Britton. 



Myrica wendtii Britton, Trans. Amer. Inst. Min. Eng., vol. 21, 1893, p. 258, 

 figs. 1-4, 20. 



Description. — Leaves relatively large, lanceolate or oblong lanceo- 

 late in outline and frequently falcate. Apex narrowly pointed, almost 

 invariably broken away. Base narrowly cuneate. Margins entire 

 at the base; throughout the greater part of their length coarsely and 

 irregularly serrate, the teeth varying from aquiline to salient or 

 straight serrate. Midrib stout, prominent no the lower surface of 

 the leaf. Texture coriaceous. Length, 6 cm. to 10 cm.; maximum 

 width, in the middle part of the leaf, 1 cm. to 2 cm. Secondaries 

 thin, numerous, subparallel, craspedodrome, diverging from the mid- 

 rib at wide angles, nearly straight in their outward course, terminating 

 in the marginal teeth. 



This species was apparently abundant in the collections studied by 

 Britton, but is sparingly represented by fragmentary material in the 

 collections studied by me. It is possible that it may merely repre- 

 sent unusually large forms of the common and variable Myrica hank' 

 sioides Engelhardt, 



