158 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



They are much less abundant on the southwest side and do not 

 extend below 500 ft. Specimens from near the shore have 

 smaller and more closely arranged leaves than do the speci- 

 mens from above 1000 ft., (nos. 676-677). Endemic. 



S. incisa Hook. f. (3), 210; Rob. (1), 217. — Chatham 

 IsL. : Darwin. Endemic. 



S. microcephala Rob. (1), 218. — Albemarle Isl. : Cowley 

 Bay, bushes and low trees, 1200-1650 ft., (no. 679) ; Tagus 

 Cove, common bushes above 1200 ft. (no. 678). Narbor- 

 OUGH Isl. : south side, Snodgrass and Heller. Endemic. 



S. narbonensis Rob. (1), 218, PL 3, figs. 4-7.— Narbor- 

 ouGH Isl. : north side, bushes 2-3 ft. high, abundant on lava 

 beds near the coast, (no. 680) ; south side, Snodgrass and 

 Heller. Endemic. 



S. ovata^ Anderss. (1), 181, (2), 70; Rob. (1), 219.— 

 Charles Isl. : Andersson; Lee. Endemic. 



S. pedunculata Hook. f. (3), 211 ; Rob. (1), 219.— Charles 

 Isl. : trees with umbrella-shaped crowns, on exposures of 

 basaltic lava, 1000-1200 ft. The most common forest tree in 

 the upper regions, (no. 681). Chatham Isl.: Wreck Bay, 

 low spreading trees, abundant above 600 ft., (no. 684). In- 

 defatigable Isl. : Academy Bay, forms dense forests of trees 

 40-60 ft. high, 400 to probably 1500 ft. This species attains 

 its largest size at this pla,ce, (nos. 685-686) ; northwest side, 

 trees 20-30 ft. high above 700 ft. (no. 678) ; southeast side, 

 trees 15-20 ft. high above 450 ft. It apparently extends up 

 higher at this place than at Academy Bay, (nos. 689-690). 

 James Isl. : James Bay, trees 25-40 ft. high above 950 ft. (no. 

 688). This species forms the Scalesia forests, on all the islands 

 where such forests occur, except on Albemarle. Endemic. 



S. retroflexa Hemsl. in Hook. f. Ic. PI. XXVIII. t. 2715 

 (1901); Rob. (1), 219.— Indefatigable Isl. : Hah el. En- 

 demic. 



S. Snodgrassii Rob. (1), 219, PI. 3, fig. 8.— Wenman Isl. : 

 bushes 2-3 ft. high on sides of cliffs (no. 691). Endemic. 



S. villosa nov. sp. 



Fruticosa circa 2 m. alta; ramulis teretibus bruneis griseo-punctatis 

 ad apices sericeo-villosis; foliis ad apices ramulorum confertis lanceo- 

 latis integerrimis longe attenuatis basi cuneatis utrinque sericeo-villosis 



