PINACEAE. — ABIES 45 



Arbor 15-40-metralis, trunco 0.3-2 m. diam.; rami primarii validi, 

 patentes; ramuli juniores glabri, lucidi, luteo-cinerei, cicatricibus 

 suborbicularibus, pulvinis oblongo-rhombicis satis distinctis, ramuli 

 vetustiores obscure cinerei; gemmae flavido-brmmeae, ovoideae, acuti- 

 usculae, leviter resinosae, perulis persistentibus. Folia inaequalia, 

 horizontaliter patentia, subdisticha, lineari-ligulata, margine leviter 

 recurva, apice plerumque emarginata v. rotundata, rarius acutiuscula 

 et Integra, basi in petiolum perbrevem sed satis distinctum contracta, 

 1.5-4 cm. longa et 3-4 mm. lata, supra nitentia, atroviridia, canalicu- 

 lata, subtus cinereo-viridia, costa media elevata; canales resiniferi 

 2, laterales, sub epidermide, sed in foliis ramulorum fructiferorum in 

 parenchymate positi; hypodermis in facie ventrali contigua epider- 

 midem crassitie aequans, in facie dorsali tantum sub costa media et 

 secus marginem evoluta. Strobili subsessiles, initio virides, sub ma- 

 turitate cinnamomei, leviter resinosi, ovoideo-cylindrici, perfecte sym- 

 metric!, apice applanati, basi rotundati, 8-10 cm. longi et 4.5-5 cm. 

 lati; squamae late obovato-cuneatae, apice in utroque latere in alam 

 brevem margine tenui leviter laciniosam productae, basi subito un- 

 guiculatae, 2.5-3 cm. longae, apice 3.5-4 cm., medio 1.8-2.2 cm. latae, 

 apice extus tomentosulae; bracteae flavo-brunneae, suborbiculares 

 emarginatae et apiculatae, eroso-denticulatae, tertiam partem squamae 

 aequantes, circiter 8 mm. latae, in unguiculum latum contractae; 

 semina obovoidea, circiter 1 cm. longa et 5 mm. lata, alls pallide brun- 

 neis 2.5-3 m. longis et 1-1.2 cm. latis apice truncatis v. rotundatis 

 minute erosis. 



Western Hupeh: Fang Hsien, forests, alt. 2300-3500 m., May 

 and October 1907 (No. 647). Shensi: Tsinling mountains 1872, A. 

 David (type). 



Through the courtesy of the Director of the Herbarium of the Museum d'His- 

 toire Naturelle at Paris we have seen a fragment of the type of this obscure species 

 and are able to identify it. The anatomical character mentioned by Van Tieghem 

 when giving a name to David's specimen has no specific value since it applies 

 equally well to several Chinese species of Abies, and in his key, moreover, he 

 places it with the species which have always sub-epidermal resin-ducts, because 

 he had examined leaves from sterile branches only. The remarks of Franchet 

 (Jovr. de Bot. XIII. 256) also are of little service in identifying this species. We 

 have, therefore, drawn up a full description from our No. 647 with which the 

 leaves of a shoot of David's original specimen agree exactly in morphological and 

 anatomical characters. 



Abies chensiensis Van Tieghem, is an exceedingly well-marked species and super- 

 ficially in the character of the branchlets, the colour and size of the leaves and in 

 the shape of the winter-buds strongly resembles Keteleeria Davidiana Beissner, 

 and this explains Franchet'e remark in PI. David. The channelled upper Bur- 



