1920] SCHNEIDER, NOTES ON AMERICAN WILLOWS. X 89 



cellaris subsimilibus/* Not citing a type specimen it is almost impossible to 

 tell what Willow Andersson may have had before him. 



I have been able to examine specimens from the White Mountains in New 

 Hampshire, from Table-top Mountain in Gasp^ Peninsula and from various 

 localities in southern Labrador. 



When 



(see Bot. Gaz. lxvii. 58 [1919]) I omitted a curious species described by 

 Rowlee as S. Maccalliana of which he said that it is "obviously related to 

 Salix alaucovs Anders., but differs in having glabrous serrate leaves. 



Its 



lucida'^ After 



the material preserved in American herbaria up to 1919 I suppose that 

 S. Maccalliana indeed can be regarded as a member of this group because 

 the flowers show a strange similarity to those of S. glauca var. glabrescens. 

 The male flowers have a dorsal gland, and the pubescence of the straw-col- 

 ored or light brown bracts is short. The leaves, however, present a wholly 

 different aspect, and somewhat resemble those of forms which Ball names 

 S. jpseiidomyrsinitesy a species of the Cordaiae group. I will give the follow- 

 ing precise description and enumerate the specimens. 



S- Maccalliana Rowlee in Bull. Torr. Bot. Club xxxiv. 158 (1907). 

 Henry, Fl. S. Brit. Col. 97 (1915).— Rydberg, Fl. Rocky Mts. 198 (1917). 

 Frutex 1-2 m. alius, ut videtur erectus, strictus, ramosus; ramuli novelli 

 sparse pubescentes, cito glabri, ? balsamei, hornotini olivacei vel purpur- 

 ascentes, saepe ut annotini biennesque castanei, nitiduli, vetustiores ignoti; 

 gemmae bene evolutae nondum visae. Folia matura crasse chartacea, in- 

 feriora minora pedunculorumque anguste vel lineari-lanceolata vel oblan- 

 ceolata, gradatim in superiora majora anguste elliptico-lanceolata vel an- 

 guste elliptico-oblonga abeuntia, basi acuta vel obtusa, apice subacuta vel 

 subacuminata, 1.5 : 0.5 ad 6.5 : 1.6 vel in surculis ad 8(-9) : 2.5 cm. magna, 

 margine incrassato distincte glanduloso-crenato-dentata dentibus circ. 

 2-4 pro 5 mm., superne novella pilis griseis fulvisque saepe satis difficile 

 recognoscendis obsita, in costa saepe densius pilosa, demum subito satis vel 

 omnino glabrescentia, intense viridia (in vivo nitidula?), costa nervisqui 

 lateralibus flavescentibus plusminusve planis et subtiliter reticulata, in 

 epidermide stomatibus satis magnis ellipticis subnumerosls instructa, sub- 

 tus initio ut superne pilosis et demum glabra, viridescentia, vix vel paullo 

 pallidiora, ? subnitidula, costa elevata nervisque lateralibus utrinque circ. 

 8-14 prominulis et etiam tenuiter reticulata; petioli 2-8 mm. longi, flavo- 

 brunnei, superne sulcati et pilosuli; stipulae etiam in surculis non visae. 

 Amenta coetanea, pedunculata, rhachi villosa, mascula ovoldeo-cylindrica, 

 pedunculo brevi (vix ultra 8 mm. longo) foliola 3-4 normalia ad 2 : 0.6 cm. 

 magna gerente excluso 1.5-2: 1.2 cm. magna, densiflora; bracteae anguste 

 obovato-oblongae, apice rotundae, flavescentes, breviter pilosae, sed versus 

 apicem plusminusve glabrescentes, venosae; stamina 2, filamentis liberis, 

 circ. I pilosis bracteam demum duplo»longioribus, antheris flavis ellipsoideis 



