BOTANY. 
81 
tubular in the flowers inspected, which are all much passed anthesis; it is probably more 
tubular at first, but is afterwards swollen out below by the enlargement of the gravid ovary. 
The gestivation could not be made out. The greatest peculiarity of the plant is found in the 
anthers, which are one-celled through obliteration; the missing cell being reduced to a narrow 
longitudinal ridge, almost continuous with the filament. This ridge is bipartible, if not 
splitting spontaneously, into two narrow lamellte, in a manner answering well to the normally 
longitudinal dehiscence of the fertile cell. It may possibly even contain a few grains of pollen, 
but probably none. 
This remarkable semi-castration has suggested the generic name.* In the total absence of a 
disk, and in the elongated style, our plant accords with Sarcodes. The pervious stigma and style 
and the imperfect calyx are points which connect it more closely with Monotropa, of which it 
has the general aspect. There are indications that the fruit is baccate. It is difficult to make 
out the structure of the ovary clearly, nor is there much material to be sacrificed in the endeavor. 
I think, however, that our analysis is not far wrong. If correct, we have a curious anomaly 
in the ovary of the present plant, namely: besides the four (or in some cases five?) normal 
cells, there is an axile cell equally and profusely ovuliferous throughout, and reminding one of 
the ovary of Obolaria (Cliloris, Bor.-Amer. p. 21, t. 3) and of Bartonia, (Man. Bot. Northern 
United States, ed. 2, p. 341.) As will be seen from the framing of the generic character, I 
take this to be of the same nature as the central cavity in the ovary of Martynia. I trust 
further specimens may duly come to hand, and confirm or correct this view of the structure of 
the ovary. 
Plate XIII. Hemitomes congestum. —The plant of the natural size. Fig. 1. Side view 
of a flower and its bract. 2. Front view of a flower. 3. Stamens and pistil. 4. A 
detached stamen, the anther seen laterally. 5. Anther seen posteriorly; the ridge representing 
the aborted cell towards the eye. 6. Same seen laterally, and divided transversely. 7. Pollen. 
8. Transverse slice of an ovary. 9. Vertical section through the whole pistil. 
Sarcodes sanguinea, Torrey, Plant. Fremont, in Smith. Contrib. 6, p. 18, 1. 10. In pine forest, 
base of Lassen’s butte, northern California. 
SCROPHULARIACEiE.—(By A. Gray.) 
Pentstemon speciosus, Dougl.; Hook. Flor. Bor. Am. 2, p. 98. Banks of Canoe creek, N. 
Cal.; shores of Klamath lake. 
Pickering and Mr. Brackenridge, in the South-Sea Exploring Expedition under Commodore Wilkes; and, finally, tbe 
present discovery of Dr. Newberry. Tbe six genera now known may be disposed synoptically in this way : 
§ 1. Corolla morupetala. 
® Ardherai biloculares : 
1. Longilrorsum dehiscentes, dor so biaristatce. 
1. Pterospora, Nutt. Corolla ovata, 5-dentata. Semina apice alata. 
2. Apice foraminibus dehiscentes , muticce. Corolla campanulata 5-loba. 
2. Sarcodes, Torr. Discus nullus. Anther® elongatse : filamenta brevia. Stylus elongatus. 
3. Schwelnitzia, EH. Discus 10-crenatus. Anther® breves: filamenta gracilia. Stylus brevis crassus. 
Anihera: abortu-uniloculares. Calyx imperfedits, braeteiformis. 
4. Hemitomes, Gray: Yide, supra. 
§ 2. Corolla i-5-petala. Calyx imperfeclus. 
5. Allotropa, Torr. Gray. Petala orbiculata, basi baud gibbosa. Discus nullus. Anther® ovat;e, biloculares, longi- 
trorsum dehiscentes. Stylus nullus. 
6. Monotropa, Linn. Petala euneata vel spathulata, basi gibbosa vel saccata. Discus e dentibus 8-10 deflexis. Anther® 
reniformes, confluentim uniloculares, transversim dehiscentes. Stylus columnaris. 
y Viz: 'UfurOim, a half-eunuch. 
11 z 
