OF ARTS AND SCIENCES. 11 



4. Ligneous-rliizomatose and caespitose : leaves cuneate, lineate-veined, and 

 rounded summit coarsely dentate, on slender wholly naked petioles of 

 the length of the blade : inflorescence narrowly paniculate : calyx-lobes 

 reflexed : filaments slender : seeds cylindraceous. S. /lagarioidts. 



Saxifraga hieracifolia, Waldst. & Kit., we have on this con- 

 tinent only on the Arctic coast. 



Saxifraga Forbesii, Vasey, in the American Entomologist and 

 Botanist (St. Louis, 1870), p. 288, is a quite distinct and local spe- 

 cies, fouud only on shaded cliffs near Makanda in Southern Illinois, 

 by Mr. S. A. Forbes. The founder compares it with S. Virginiensis, 

 which grows also upon rocks , but it is more like aS'. erosa, which grows 

 in and along mountain brooks. 



Saxifraga eriophora, S. Watson, Proc. Am. Acad. xvii. 372, 

 is described from specimens collected in the Santa Cataliua Motin- 

 taius of Arizona, in the year 1881, by Mr. and Mrs. Lemmon. It is 

 nearest to S. Virginiensis ; and the woolliuess on the leaves, which 

 suggested the name, hardly appears upon one of the two specimens. 



Saxifraga Virginiensis, Michx. (which Linnaeus confounded 

 with S. nivalis), is now better known and defined, the high northern 

 and far western species which has been confounded with it being 

 discriminated from it. S. Texana, Buckley in Proc. Acad. Philad., 

 1861, ■ibo, can only be referred to S. Virginiensis, nothing in the 

 character excluding it, and apparently no specimen is extant. 



Saxifraga reflexa, Hook, Fl. Bor.-Ani. i. 249, t. 85. This is 

 now substantially identified, and may be distinguished from S. Vir- 

 giniensis by the characters assigned in the above synoptical view ; 

 viz. the slender pedicels, reflexed calyx, and the commonly dilated or 

 clavate filaments. The original is Arctic American, but it occurs in 

 the northern part of the Rocky Mountains, thence to British Colum- 

 bia, and southward along the Cascades and Sierra Nevada, throughout 

 California even to its southern borders, where it has been confounded 

 with S. Virginiensis. Mr. Muir collected it in Arctic Alaska ; and in 

 Eastern Asia it is well represented by S. Sachalinensis, Fr. Schmidt, 

 Fl. Sachal. 133, which answers to Hooker's figure, while S. Tilingiana, 

 Regel, Fl. Ajan. 94, appears to be a form with more petiolate and less 

 dentate leaves, which may be matched by Californian specimens. 



Saxifraga Daiiurica, Pall, (retaining Pallas's orthography), 

 now that we rightly identify it, cannot claim a place in the N. Amer- 

 ican flora ; but it may be expected in Arctic Alaska, for Charles 

 Wright collected specimens of it (along with some of S. Lyalli) on 

 an island upon the Asiatic side within liehrinir Strait. We have it 

 from Ajan in Tiling's collection. 



