SAXIFRAGACEAE. — DEUTZIA 17 



♦♦ Folia subtus pilis multiradiatis adpressis conspersa v. glabra. 



t Filamenta edciitata v. breviter dcntata dentibus antheram non superantibus. 

 Calyx stollalo-pilosus; folia subtus sparse pilis 6-12-radiatis instructa. 

 Petala circa 6 mm. longa; filamenta breviter dentata, rarius edentata; 

 corymbus ramulis 1-2 cm. longis. 

 Folia crenato-serrulata serraturis incurvis, basi rotundata, subtus 

 pilis 8-12-radiatis conspersa; filamenta omnia dentata. 



28. D. corymbosa. 



Folia argute serrulata serraturis porrectis, basi plerumque late cuneata, 



subtus pilis 6-9-radiati3 conspersa; filamenta saepe saltern ex- 



toriora edentata 29. D. parviflora. 



Petala circa 3.5 cm. longa; filamenta subulata; corymbus multiflorus 



ramulis inferioribus ad 3 cm. longis 30. D. micrantha. 



Calyx et corymbus omnino glabra; folia subtus glabra v. sparsissime 



pilis 3-radiatis conspersa; filamenta subulata. 31. D. glabrata. 



tt Filamenta staminum exteriorum manifeste dentata dentibus antheram 



superantibus, interiorum lineari-oblonga antheram longe superantia. 



Folia subtus stellato-pilosa, viridia, pilis 5-6-radiatis conspersa; petala 



extus rubescentes, calycis dentes plerumque purpurei, acuminulata. 



32. D. rubens. 

 Folia subtus glaberrima, glauca; petala alba; calycis dentes palUdi, obtusi. 



33. D. hypoglauca. 



ENUMERATION OF THE SPECIES. 



Sect. I. EUDEUTZIA Engler, Nat. Pflanzenfam. III. 29, p. 72 (in part) (1900). — 

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



Subsect. 1. SCABRAE Rehder, n. subsect. 

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

 (1904). 



Inflorescence a sessile panicle with an elongated main axis and short, few- or 

 several-flowered lateral branchlets; calyx-teeth ovate or triangular, much shorter 

 than the tube; petals usually more or less upright; filaments not exceeding the 

 anthers, without teeth or with short teeth not reaching the base of the anthers, 

 two-thirds or nearly as long as the petals; styles slender, as long or not more than 

 one-third shorter than the petals. Here belong, besides the species enumerated 

 below, D. hypoleuca Maximowicz, D. Sieboldiana Maximowicz and D. gracilis 

 Siebold & Zuccarini. 



1. Deutzia scabra Thunberg. See p. 6. 



2. Deutzia Schneideriana Rehder. See p. 7. 



3. Deutzia ningpoensis Rehder, n. sp. 



Frutex ramulis gracilibus, junioribus rufobrunneis, sparse stellato-pilosis, vetus- 

 tioribus pallide griseo-brunneis. Gemmae perulis acutis sparse stellato-pilosae. 

 Foha subchartacea, ovato-oblonga, acuminata, basi rotundata v. late cuneata, 

 remote et obsolete denticulata v. fere Integra, 3.5-7 cm. longa et 1.5-3 cm. lata, 

 supra obscure viridia, pilis 4-6-radiatis conspersa, subtus albido-tomentosa, dense 

 pilis r2-14-radiatis obtccta, utrinsecus5-6-costata; petioli stellato-pilosi, 1-2 mm. 

 longi. Panicula 5-12 cm. longa et 2.5-6 cm. lata, laxe stellato-pilosa, pediceUis 

 1-3 mm. longis; flores desunt. Capsula subglobosa, 3-4.5 mm. diam., dense stel- 

 lato-pilosa, calycis dentibus dimidium tubum vix superantibus plerumque deciduis; 

 stylis 3, gracilibus, circa S mm. longis. 



Chekiang: Ningpo Mts., E. Faber ((Herb. Arnold Arboretum). 



