532 WILSON EXPEDITION TO CHINA 



disci squama unica, fere quadrata, apice irregulariter dentata, circiter 

 1 mm. longa; pistillum 3.5 mm. longum, ovarium strigoso-pubescente, 

 stylo brevissimo, stigmatae capitato. Fructus ignotus. 



Western Szech'uan: Valley of Hsao-chin-ho, near Monkong 

 Ting, alt. 2100-3300 m., June 1908 (No. 2363). 



This species seems to be most nearly related to W. chamaedaphne Meisner, which 

 differs in its stouter glabrous more or less angular branchlets, glabrous petioles, 

 larger leaves and in the paniculate inflorescence. 



Wikstroemia brevipaniculata Rehder, n. sp. 



Frutex gracilis 0.3-1 m. altus, glaber ; ramuli teretes, hornotini glauco- 

 virides v. leviter rubescentes, annotini rubro-brunnei. Folia opposita, 

 chartacea, subpersistentia, oblonga v. elliptico-oblonga, v. anguste 

 oblonga, rarius oblanceolato-oblonga, basi attenuata, apice acutius- 

 cula et mucrone spinescente munita, margine leviter revoluta, 1.5^ 

 cm. longa et 0.4-1.2 cm. lata, supra coeruleo-viridia, opaca, subtus 

 glaucescentia, nervis utrinsecus 6-10 subtus leviter elevatis margine 

 anastomosantibus venulis levissime prominulis; petioli 1-2 mm. longi. 

 Flores lutescentes, parce strigosis v. fere glabris, circiter 4 mm. longi, 

 in paniculis terminalibus 1-4 cm. longis; lobi ovati v. acutiusculi tubo 

 triplo V. quadruplo breviores; stamina 8, antheris subsessilibus : ova- 

 rium obovoideum, basi attenuatum, apice pilosum, stigmate capitato 

 subsessili; squama disci unica, subquadrata apice erosa (semper?). 

 Fructus ovoideus, purpureo-niger, 4 mm. longus, apice strigosulus. 



Eastern Szech'uan: Taning Hsien, roadside, alt. 900-1100 m. 

 July 1910 (No. 4613). 



This species seems to be most nearly related to W. micraniha Hemsley, which 

 differs in its simple spicate or fascicled inflorescence, larger flowers, and in the 

 smaller leaves usually obtusish and scarcely mucronulate and in their obsolete 

 venation. It may also be compared with W. chamaedaphne Meisner, which is easily 

 distinguished by the densely pubescent flowers in larger and denser panicles, the 

 longer yellowish green obtusish leaves and the striate or slightly angular branchlets. 



CLAVIS SPECIERUM SINENSIUM. 

 Flores tetrameri. 



Flores in racemis v. fascicuHs solitariis (interdum paniculatae in No. 7). 

 Folia opposita, persistentia v. subpersistentia. 

 FoHa ovata v. elliptica ad ovato-oblonga. 

 Ramuli et folia glabra. -ij 



Folia subtus glaucescentia. Flores glabri, spicati, pedunculo graci 



nutante suffulti; ovarium glabrum I. W- nuta 



Folia concoloria V. fere concoloria. Spica erecta. . j- ^ 



Folia ba^i acuta .^^ W.mdwa. 



Folia basi obtusa v. rotundata, brevissime petiolata. , 



3. IT. stenantha. 



