1902.] 



NATURAL SCIENCES OF nilLADELPHIA. 



499 



Gymnosp 0-Oymn spo- 

 rangium ni- rangium cla- 

 d u s - a V i s variceforme 

 Thaxter. D. C. 



1 

 Gymnospo-Gymnospo 

 rangium bi-\ rangium glo 

 septatum El-j bosum Y &y 

 lis. ' low. 



Gy vino spo- 

 rangium ma- 

 cropuH Lk. 



Juni p erus 

 virginiana. 



Leaves, bran- 

 ches a u d 

 trunks p r o - 

 ducing bird's 

 nest distor- 

 tions. 



Perennial. 



Tissues of 

 leaves, bran 

 ches, trunk. 



Juniperus 

 communis. 



Branches cau- 

 sing long fu- 

 siform swell- 

 ings. 



Cupressus thy- 



oides, 

 Libocedrus 



decurrens. 



Juniper ii 8 

 virginiana. 



Stems and Smaller bran 

 branches ches produc 

 forming large ing globose 

 and small no-l swellings. 

 dose swell- 1 

 ings. 



When young 

 cushion - like, 

 i r r e g ularly 

 globose or 

 oval, small 

 and distinct 

 o r elongate 

 and conflu- 

 ent, rich red- 

 brown; moist 

 and swollen, 

 orange c o 1 - 

 ored. 



Perennial. 



Wood forming 

 a rim in the 

 annual 

 growth, fre- 

 quently in 

 the medulla 

 ry rays. 



Fine hyphge 

 little l)ranch- 

 ed, growing 

 up and down 

 and inward 



Numerous, 

 scattered o r 

 aggregated, 

 bright yel 

 low when 

 swollen. 



Perennial. 



Perennial. 



Juniperus 

 virginiana. 



Attackin g 

 leaves and 

 smaller twigs 

 and produc- 

 ing spherical 

 reddishswell- 

 ings. 



lAnnual. 



C a m b iu m,lT issu es of 

 woodandme-1 stem and 

 dullary rays.] leaves. 



Hyphaj large, Abundant, 

 brown, 

 branched t o 

 form a reti- 

 culum. 



Flattened aud.G 1 o b o s e 



b r o w n i s b [ 

 w hen d r y , j 

 hemispheri- 

 cal, yellow 

 a n'd rugose 

 when swol- 

 len. ; 



ted. 



densely 

 greg 

 dark brown 

 Av h e n dry, 

 yellowish-or- 

 a n g e when 

 swollen. ^-^ 

 inch high. 



Cellsofleaves. 



Abundant, 

 producing 

 h a u s t o r i a 

 which grow 

 intolcaf cells- 



Aggregated 

 in globose 

 masses, or- 

 ange-yellow, 

 cjlindrical, 

 g e 1 a t i n o us. 

 J-l m. long. 



