78 PROCEEDINGS OF THE AMERICAN ACADEMY. 



Bletia macristhmochila, Greenm., Proc. Am. Acad, xxxii, 297. 

 Flowering and fruiting specimens of this attractive orchid were secured 

 by Mr. C. G. Pringle during the past season, on banlis of ravines near 

 Guadalajara, Mexico, no. 8G40 (hb. Gr.). From Mr. Pringle's recently- 

 collected material it may be noted that the mature capsule is about 5 cm. 

 in length and 1 cm. in diameter. 



Celtis platycaulis. Fruticose : stems and branches flattened, cov- 

 ered with a reddish-brown bark, bearing single, curved, 5 to 6 mm. 

 long spines : leaves ovate to obovate, 3 to 5 cm. long, 1.5 to 3 cm. broad, 

 acute to rounded at the apex, usually serrate from near or just above the 

 middle to the apex, entire in the lower half, rarely entire from base to 

 apex, 3-nerved, in the very young stages puberulent, but soon becoming 

 glabrous or essentially so; petioles 4 to 5 mm. long, and as well as the 

 ultimate branches puberulent: the cymose inflorescences of the male 

 flowers twice or more exceeding the petioles : fertile flowers few, borne 

 at the tips of the branches ; ovary puberulent ; style branches bifurcated: 

 mature fruit not seen. — Mexico. State of Morelos : volcanic hills near 

 Yantcpec, altitude 1230 m., 5 Jul}-, 1901, C. G. Priiujle, no. 8535 

 (hb. Gr.). 



OxYBAPnus viscosus, L'Her., in Willd. Sp. i. 185; Choisy in DC. 

 Prodr. xiii. 2, 430. Specimens collected by Mr. C. G. Pringle at Tehua- 

 can, Mexico, 1901, no. 8600 (hb. Gr.), agree in all important characters 

 with typical representatives of the above species. In INIr. Pringle's 

 specimens, however, the perigonium is considerably larger than is 

 described and figured for 0. viscosus, L'Her. ; but this slight difference 

 is supplemented by no other evident character, hence it seems best for 

 the present at least to regard the Pringle plant as a mere form of the 

 species here mentioned. 



Ribes Dugesii. A much-branched shrub : stem covered with red- 

 dish-brown bark, glabrous; branchlets finely pubescent: leaves petiolate, 

 ovate-rotund, shallowly 3-5-lobed, doubly crenate-serrate, 3-7-nerved 

 from a cordate base, green and glabrous above, paler and somewhat 

 glandular-pubescent beneath, especially on the prominent nerves ; peti- 

 oles 1 to 3 cm. long, and as well as tlie inflorescence minutely puberulent 

 with sti[)itate glands intermixed, dilated at the base into a more or less 

 glandular-ciliate expansion : racemes pedunculate, borne at the ends of 

 young terminal branches and lateral shoots, 3 to G cm. long, suberect 

 or somewhat drooping ; pedicels 1 to 10 mm. long, jointed above, naked or 

 bibracteate at the joint : flowers 1 cm. or less long : calyx subcampanu- 

 late, white or more or less roseate, 5-lobed for about one-half its length ; 



