SAXIFRAGACEAE. DEUTZIA 17 



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



t Filamenta edentata v. breviter dentata dentibus antheram non superantibus. 

 Calyx stellato-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-radiatis conspersa; filamenta saepe saltern ex- 



teriora 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. 



ft 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 pallidi, 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 hi 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. 

 Folia 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 12-14-radiatis obtecta, utrinsecus5-6-costata; petioli stellato-pilosi, 1-2 mm. 

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

 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 8 mm. longis. 



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



