16 BOTANICAL GAZETTE [JANUARY 
leaves. Probably all the other PLEIANDRAE possess such stomata, 
but sometimes they are so sparse that it is difficult to detect them. 
5. S. JALISCANA Jones, Contrib. West. Bot. 12:77. 1908.— 
Ad descriptionem addenda et emendanda: Frutex ut videtur 
altus; truncus?; ramuli novelli dense griseo- vel subferrugineo- 
villosulo-tomentosi, annotini fuscescentes, laxius vel tantum partim 
tomentosuli, vetustiores fusco-cinerascentes, glabrescentes. Gem- 
mae bene evolutae non visae, ut videtur glabrae. Folia matura 
perfecte evoluta a me non visa, semievoluta (in specimine femineo) 
inferiora ovali-elliptica vel elliptico-obovata, superiora majora 
elliptica vel elliptico-lanceolata, basi obtusa rotundave, apice acuta 
vel summo breviter acuminata, inferiora ut videtur satis evoluta 
(minimis exceptis) 3.5:1.5 ad 5.5:2.3 cm. magna, superiora ad 
7:2.5 vel 8:1.7-2 cm. magna, in speciminibus masculis pleraque 
angustiora, interdum oblanceolata, 3:0.7 ad 8:1.5 cm. magna, 
superne initio pl. m. sericeo-villosa, cito glabrescentia, adulta 
probabiliter glabra vel tantum in costa flavescente plana pl. m. 
pubescentia, intense viridia, subtus valde discoloria, initio dense 
griseo- vel ferrugineo-villosa, dein glabrescentia, glaucescentia, 
pruinosa, costa nervisque lateralibus utrinsecus ad 12 angulo— 
60-45° a costa abeuntibus versus marginem currentibus pl. m. 
prominulis flavescentibusque, margine pl. m. dense subdistincte 
glanduloso-serrato-denticulata, versus basim integerrima. Petioli 
1-8 mm. longi, superne sulcati, undique villoso-tomentelli. Stipulae 
parvae, lineari-lanceolatae, subglabrae, denticulatae, petiolis 2—3plo 
breviores, cito deciduae. Amenta tardiva, ramulos normaliter 
foliatos 1-2 cm. longos terminantia, rhachi villosa; mascula 
cylindrica, ad 3.5:0.8 cm. magna, densiflora; bractae obovatae vel 
late ovato-oblongae, obtusae vel rotundatae, flavescentes, utrinque 
villosae vel apicem versus glabrescentes, 2-3.5 mm. longae; 
stamina pleraque 5, filamentis ad medium fere villosis, antheris 
flavis elliptico-globosis; glandulae 2, pl. m. lobatae, rarius simplices; 
amenta feminea semimatura ad 4.5 cm. longa et 1.3-1.5 cm. 
crassa, cylindrica vel elliptico-cylindrica, fructibus valde congestis; 
bracteae late oblongae, obtusae, villosulae, apice glabriores, pedi- 
cellum paullo vel vix superantes; ovaria semimatura (juvenilia 
ignota) ovoideo-conica, basi subacuta, apice obtusa, circ. 4 mm. 
