ADDITIONS AND CORRECTIONS TO VOL. I. 443 



ovate or roundish, on short slender petioles, denticulate : flowers appearing with the 

 leaves, solitary or somewhat fascicled, 5 or 6 lines broad, on pedicels 2 or 3 lines 

 long : calyx-lobes ciliate : ovary densely pubescent ; style elongated : stone oblong, 

 turgid, rounded on one side and with a broad ridge upon the other, 5 lines long. 



Coast Ranges of Southern California ; OriHamme Canon, San Diego County (D. Cleveland) ; 

 San Bernardino Mountains, Parry & Lemmon, n. 108, 1876. Also collected by Fretnvnt in 1846, 

 locality uncertain. Flowering in March ; fruit probably with little pulp. 



3. P. demissa, Walp. Hoopa Valley, Humboldt County, V. Rattan. 



4. P. ilicifolia, Walp. The fruit is light red, becoming dark purple on drying. 



Page 170. 3. SPHL33A. 



Dr. Maximowicz, of St. Petersburg, in his recent " Adnotationes de Spirceaceis" (Act. Hort. 

 Petrop. vi. 105-261), separates from the order Rosacece the tribes Spircceae and Quillajeos, of 

 which together with the Pomece he forms an order Pomacece, intermediate between the Jtosacece 

 proper and the Saxifragacece. This new order is distinguished from the first chiefly by the dehis- 

 cent carpels or by the carpels connate with the calyx, and from the last by the indefinite stamens 

 in alternating whorls, the outer the longest. The genus Spiraea itself, as ordinarily understood, 

 is resolved by him into several distinct genera, and the American species which have been referred 

 to Neillia are also made to constitute a new genus, Physocarpus. While not prepared to adopt 

 all of the proposed changes, some of them at least appear judicious. The following synopsis shows 

 the alterations made by him in the arrangement of our species. 



* Carpels alternate with the calyx-lobes when of the same number. 



+- Seeds with membranaceous testa and no albumen : stipules none. 



++ Calyx persistent in fruit : stamens perigynous : carpels several-seeded. 



3. Spiraea, Linn. Carpels cartilaginous, 1-valved, distinct. Flowers perfect, rarely polyga- 



mous. Leaves simple, serrate or incised. S. BETULEFOLIA, S. DOUGLASII, and S. 

 C^SPITOSA. 



3 a . Eriogynia, Hook. Carpels membranaceous, 2-valved, distinct. Flowers perfect. Leaves 

 biternately parted. E. PECTIN AT A, Hook. (Spiraea pectinata, Torr. & Gray). Collected 

 on Mount Shasta, Hooker & Gray. 

 H- -n- Calyx marcescent in fruit : stamens hypogynous : carpels few-seeded. 



3 b . Aruncus, Linn. Carpels cartilaginous, 1-valved, distinct. Flowers dioecious. Leaves re- 

 peatedly teruately divided. A. SYLVESTER, Kost. (Spiraea Aruncus, Linn.) 



+ +- Seeds with shining stony testa : albumen very distinct : stipules membranaceous, caducous. 



4. Physocarpus, Maxim. Follicles membranaceous, inflated, 2-valved, distinct, often stipi- 



tate. Flowers perfect, corymbose. Leaves lobed. P. OPULIFOLIA, Maxim., P. TOR- 

 REYI, Maxim. (Neillia opulifolia, Benth. & Hook., and N. Torreyi, Watson.) 



* * Carpels opposite to the calyx-lobes when of the same number. 



4*. Chamaebatiaria, Maxim. Follicles coriaceous, 1-valved, connate at base, several-seeded. 

 Albumen distinct. Flowers perfect. Leaves small, coriaceous, stipulate, bipinnately 

 dissected. C. MILLEFOLIUM, Maxim. (Spiraea Millefolium, Torr.) 



* * * Carpel becoming an akene. (Excluded from Pomacece.) 



4 b . Holodiscus, Maxim. Carpels alternate with the calyx-lobes, with densely silky styles, 

 and 2 collateral pendulous ovules. Akenes membranaceous, woolly, 1-seeded. Leaves 

 lobed, without stipules. H. DISCOLOR, Maxim. (Spiraea discolor, Pursh.) Maxi- 

 mowicz considers this genus to be most nearly allied to Cercocarpus, etc. 



Page 171. 5. RTJBUS. 



1. R. Nutkanus, Mo<j. Summit of Tranquillon Mountain, Santa Barbara 

 County, Mrs. Bartlett. 



5. R. ursinus, Cham. & Schlecht. San Diego County, D. Cleveland. 

 Page 173. 7. PURSHIA. 



1. P. tridentata, DC. Rock Spring, San Bernardino County, Palmer. Very 

 resinous and glandular-dotted : flowers long-pedicelled. 



