ADDITIONS AND CORRECTIONS TO VOL. I. 443 



ovato or roundisli, on sliort slondor potiolos, (Icnticulatc : flowers appearing; witli the 

 leaves, solitary or soinowliat fasriclod, f) or lines broad, on ]>pdie('ls 2 or 3 lines 

 long : calyx-l(d)es ciliato : ovary densely pubescent ; stylo elon<:;ated : stone oblong, 

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



Coast Ranges of Soiitlierii Califoniia ; Oiillanmie Canon, San Diego County {D. Chvelmid) ; 

 San IJeinardino Mountains, Pamj k Lcmmon, n. 108, 1876. Aho collected by Fremont in 184t), 

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



3. P. demissa, Walp. Iloopa Valley, IIum))oldt County, V. Iiattan. 



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



Page 170. 3. SPIR^A. 



Dr. Maximowic/, of St. Petersburg, in his recent " Ailnotationes de Spirreaceis" (Act. Hort. 

 Petrop. vi. 105-261), sepaiates from the order llosncecc the tiibes S/nncew and QuUlajece, of 

 which together with the Poinae he forms an order Pomaccw, intermediate between the Ilosacete 

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

 cent carpels or by tiie carpels connate with the caly.x, and from the last by the indefinite stamens 

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

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

 to Ncillia are also made to constitute a new genus, rhysocnrpus. While not prepared to adopt 

 all of the proposed changes, some of them at least ai>pear 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 fniit : stamens perigynous : carpels several-seeded. 



3. Spiraea, Linn. Carpels cartilaginous, 1-valvcd, distinct. Flowers peifect, rarely polyga- 



mous. Leaves simple, serrate or incised. — S. betul^.folia, S. DouGLASll, and S. 

 CiT;snTosA. 



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

 biteinatcly parted. — M PF.cniNATA, Hook. (Spinca pcdinala, Torr. & Gray). Collected 

 on Mount Shasta, Honker k (iraij. 

 ++ ++ Calyx marceseent in fruit: stamens hypogynous : carpels few-seeded. 



Z^. Aruncus, Linn. Carpels cartilaginous, 1-valvcd, distinct. Flowers difccious. Leaves re- 

 peatedly ternately divided. — A. .sylvestei'., Kost. (Spircea Aruncus, Linn.) 



+- -f- Seeds with shining stony te.sta : albumen very distinct : stipules membranaceous, caducous. 



4. Physocarpus, Maxim. Follicles membranaceous, inflated, 2-valved, distinct, often stii)i- 



tate. Flowers perfect, corymbose. Leaves lobed. — P. oruriForiA, Maxim., P. ToK- 

 KEYi, Maxim. (Ncillia opulifolia, Benth. & Hook,, and A^. Torrciji, Watson.) 

 * * Carpels oi)posite to the calyx-lobes when of the same number. 



4». Chamaebatiaria, JLaxim. Follicles coriaceous, 1-valved, connate at base, several-seeded. 

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

 dissected. — C. Millefolium, Maxim. [Spircea Millefolium, Torr.) 

 * * * Carpel becoming an akene. (Excluded from Po)ii<tcccc.) 



4^ 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. ni.scoLOK, Maxim. [Spircca discolor, Pursh.) Maxi- 

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



Page 171. 5. RUBUS. 



1. R. Nutkanus, M09. Summit of Tranquillon ^Mountain, Santa Barbara 

 County, Mrs. Bartlett. 



5. R. ursinus, Cham, k Schlecbt. San Diego County, D. Cleveland. 



Page 173. 7. PURSHIA. 



1. P. tridentata, DC. I\ock Spring, San Bernardino County, Palmer. Very 

 resinous and glandular-dotted : flowers long-pedicelled. 



