18 WILSON EXPEDITION TO CHINA 



Allied to D. hijpoleuca Maximoudcz which differs chiefly in its densely serrulate 

 thinner leaves, the slenderer petioles, 2-5 mm. long and the 4-5 styles. 



4. Deutzia pulchra Vidal, Revis. PI. Vase. Filip. 124 (1886). 

 Formosa: Bankinsing, A. Henry (Nos. 38, 477). 



The occurrence of this Philippine species in Formosa is phytogeographically in- 

 teresting. Henry's specimens agree exactly with Elmer's No. 8414 from the prov- 

 ince of Benguet, except that in the latter the stellate hairs on the upper surface of 

 the leaves have usually 4-6 rays interspersed with comparatively few hairs with 

 10-12 rays, while in the Formosa plant most of the hairs have 6-8 rays and many 

 10-14 rays. The inflorescence is not corymbiform as might be inferred from 

 Vidal's description, but a panicle 6-11 cm. long and 5-8 cm. broad. 



5. Deutzia Faberi Rehder, n. sp. 



Frutex ramulis gracilibus fuscis, junioribus stellato-pilosis, annotinis peridermate 

 detersili. Gemmae multi-perulatae, stellato-tomentosae. Foha membranacea, 

 oblonga v. anguste ovato-oblonga, acuminata, in ramuhs floriferis subsessiUa, 

 basi rotundata, in steriUbus breviter petiolata, basi cuneata, dense minuteque ser- 

 rulata serraturis adpressis, 4-8 cm. longa et 1.5-2.5 cm. lata, laete viridia, concoloria, 

 supra piUs 3-4-radiatis sat dense conspersis, subtus pihs plerumque 4-radiatis in- 

 superque saepissime radio centrali elongate instructis pubem subvillosam for- 

 mantibus praedita, utrinsecus 7-9-costata; petioU stellato-pilosi, 1-2 mm. longi, 

 in ramulis floriferis subnulli. Panicula sessilis, multiflora, laxa, 7-10 cm. longa, 

 laxe stellato-pilosa; pedicelU graciles, pube heteromorpha vestita; calycis dentes 

 minuti vix quartam partem tubi dense pube heteromopha vestiti turbinati longi- 

 oris quam lati aequantes; petala oblonga, erecta, 10 mm. longa et 4 mm. lata, 

 extus dense stellato-pilosa; stamina exteriora petalis aequilonga filamentis basi 

 dilatatis apicem versus sensim angustatis v. pauUo supra medium subito contrac- 

 tum angulatum, interiora filamentis paullo supra medium breviter dentatis; styli 3, 

 graciles, stamina aequantes. Capsulae maturae desunt. 



Chekiang: Tientai, Kiangsu Hills, E. Faber (No. 210, in Herb. Arnold Arbo- 

 retum.). 



Closely related to D. Sieboldiana Maximowicz, which is easily distinguished by 

 its generally ovate leaves, more coarsely serrulate with spreading tieeth, by the 

 calyx-teeth being about half as long as the tube which is broader than long, and by 

 its smaller flowers with more spreading petals. 



6. Deutzia taiwanensis Schneider in Mitt. Deutsch. Dendr. Ges. XIII. 177 

 (1904). 



D. crenata, var. ? 8 taiwanensis Maximowicz in Mem. Acad. Sci. St. Petersb. 

 ser. 7, X. No. XVI. 23 (1867). 

 Formosa: near Tamsuy, 1864, R. Oldham (No. 107, in Herb. Kew.). 



Subsect. 2. CYMOSAE Rehder, n. subsect. 



Latisepalae Schneider in Mitt. Deutsch. Dendr. Ges. XIII. 176 (in part) (1904). 



Inflorescence distinctly cymose, much broader than high, sometimes few-flowered; 

 calyx-teeth much shorter than the tube, incurved at maturity; filaments, at least 

 those of the inner stamens, exceeding the anthers, those of the outer row distinctly 

 bidentate, these of the inner row with obtuse or irregularly dentate apex; styles 

 scarcely half as long as the petals. Stellate hairs of the leaves with few rays, those 

 of the under side usually with 5 or 6, occasionally with 7 rays. 



7. Deutzia pilosa Rehder. See p. 8. 



8. Deutzia setchuenensis Franchet in Jour, de Bot. X. 282 (1896). 



Deutzia scabra, var. ? cymis paucifloris Hemsley in Jour. Linn. Soc. XXIII. 

 277 (1887). 



