26 . Addisonia 



The material from which the illustration was prepared was secured 

 by Doctor F. W. Pennell in oak woods at Central Park, Long Island, 

 September 1, 1919. 



The crimson pine-sap is a low fleshy saprophyte of clustered 

 growth from a compacted mass of short roots. It is pubescent 

 throughout above the base, downy on the stem and with a somewhat 

 coarser and whitened investiture on the freer vegetative parts, 

 especially on the inner face of the petals. The stems are erect, and, 

 under conditions that seem to meet every need of the plant's 

 development, are often no more than from four to six inches high. 

 They are at first quite evenly cylindric, but become more or less 

 sulcate-striate when dry. The base of the stem is clothed with 

 short overlapping scales and these, less firm of substance and in 

 more open order further up the stem, extend into the inflorescence. 

 The lower scales are broadened and blunt, those higher up lanceolate 

 and often tapering-acute. The inflorescence is a racemose cluster, 

 most often of from four to seven flowers, at first nodding but soon 

 becoming erect. Reduced plants sometimes bear only a single ter- 

 minal flower. The flowers are about three-eighths of an inch in 

 length, and are borne on downy pedicels which finally equal or a 

 little exceed the length of the flower. The sepals are as many as 

 the petals, or fewer, and like the bracts are sometimes slightly 

 erose-denticulate. The petals are four in number or, in the terminal 

 flower, five. They are oblong or spatulate, and are rounded or 

 somewhat truncate at the distal end and compressed and saccate 

 at the base. The stamens are eight or ten and have slender hairy 

 filaments. The two anther-sacs are reniform, and release the pollen 

 by splitting around to the margin. They are very unequally 

 developed, one of them often appearing to be abortive. The 

 ovary is pubescent and is ovoid in shape, narrowing into a columnar 

 style of about the same length which is also pubescent. The stigma 

 is orbicular and somewhat funnelform, and is rimmed with a dense 

 bearding of white hairs. The capsule is ovoid-globose, about three- 

 sixteenths of an inch high, and is four- or five-lobed ; around its base 

 are eight to ten reflexed tooth-like processes alternating with the 

 stamens. The innumerable seeds are minute and subulate, and are 

 somewhat tailed on either end by extension of the loose testa, in 

 appearance suggesting the tailed seeds of a Juncus. The plant 

 varies in color from clear pink to carmine and almost scarlet, except 

 the ends of the petals and sepals which are clear yellow. 



E. P. BlCKNEI^L. 



Explanation OF Plate. Fig. 1. — Flowering plant. Fig. 2. — Petal, X 2. 

 Fig. 3.— Sepal, X 2. Fig. 4.— Stamens. X 3. Fig. 5.— Pistil, X 2. Fig. 6.— 

 Fruiting stem. Fig. 7. — Fruit, X 3. 



